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//Question1
//Define Variables
var one1, one2, one3, one4, one5
//Assigns Random Integers
one1 = Math.floor(Math.random()*11)+1;
one2 = Math.floor(Math.random()*11)+1;
one3 = Math.floor(Math.random()*11)+1;
one4 = Math.floor(Math.random()*11)+1;
one5 = Math.floor(Math.random()*11)+1;
//find mean
onemean = (one1+one2+one3+one4+one5)/5;
onem1 = (one1+one2+one3+one4+one5)/4;
onem2 = (one1*one2*one3*one4*one5)/125;
onem3 = (one1+one2+one3+one4+one5)/2;
//Answer Choices
onecorrectanswer = onemean.toFixed(3).replace(/\.?0+$/,"").toString();
oneanswer1 = onem1.toFixed(3).replace(/\.?0+$/,"").toString();
oneanswer2 = onem2.toFixed(3).replace(/\.?0+$/,"").toString();
oneanswer3 = onem3.toFixed(3).replace(/\.?0+$/,"").toString();
//Place Answer Choices into Array
oneanswerchoices = [oneanswer1, oneanswer2, oneanswer3, onecorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*oneanswerchoices.length);
var indexb = Math.floor(Math.random()*oneanswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*oneanswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*oneanswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
onea = oneanswerchoices[indexa];
oneb = oneanswerchoices[indexb];
onec = oneanswerchoices[indexc];
oned = oneanswerchoices[indexd];
if (indexa == 3) {
onecorrectchoice = "a"
}
if (indexb == 3) {
onecorrectchoice = "b"
}
if (indexc == 3) {
onecorrectchoice = "c"
}
if (indexd == 3) {
onecorrectchoice = "d"
}
//Qeustion 1 Question
question1 = "1. Find the Mean of the following Data set: " + one1.toString() + ", " + one2.toString() + ", " + one3.toString() + ", " + one4.toString() + ", " + one5.toString();
//Question2
//Define Variables
var two1, two2, two3, two4, two5
//Assigns Random Integers
two1 = Math.floor(Math.random()*11)+1;
two2 = Math.floor(Math.random()*11)+1;
two3 = Math.floor(Math.random()*11)+1;
two4 = Math.floor(Math.random()*11)+1;
two5 = Math.floor(Math.random()*11)+1;
//find standard deviation
twomean = (two1+two2+two3+two4+two5)/5;
twosd = Math.sqrt((Math.pow(two1-twomean,2)+Math.pow(two2-twomean,2)+Math.pow(two3-twomean,2)+Math.pow(two5-twomean,2)+Math.pow(two5-twomean,2))/4);
twosd1 = Math.sqrt((Math.pow(two1,2)+Math.pow(two2,2)+Math.pow(two3,2)+Math.pow(two5,2)+Math.pow(two5,2))/5);
twosd2 = Math.sqrt(Math.abs((Math.pow(two1-twomean,1)+Math.pow(two2-twomean,1)+Math.pow(two3-twomean,1)+Math.pow(two5-twomean,1)+Math.pow(two5-twomean,1)))/5);
twosd3 = Math.sqrt((Math.pow(two1-twomean,2)+Math.pow(two2-twomean,2)+Math.pow(two3-twomean,2)+Math.pow(two5-twomean,2)+Math.pow(two5-twomean,2))/5);
//Answer Choices
twocorrectanswer = twosd.toFixed(3).replace(/\.?0+$/,"").toString();
twoanswer1 = twosd1.toFixed(3).replace(/\.?0+$/,"").toString();
twoanswer2 = twosd2.toFixed(3).replace(/\.?0+$/,"").toString();
twoanswer3 = twosd3.toFixed(3).replace(/\.?0+$/,"").toString();
//Place Answer Choices into Array
twoanswerchoices = [twoanswer1, twoanswer2, twoanswer3, twocorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*twoanswerchoices.length);
var indexb = Math.floor(Math.random()*twoanswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*twoanswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*twoanswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
twoa = twoanswerchoices[indexa];
twob = twoanswerchoices[indexb];
twoc = twoanswerchoices[indexc];
twod = twoanswerchoices[indexd];
if (indexa == 3) {
twocorrectchoice = "a"
}
if (indexb == 3) {
twocorrectchoice = "b"
}
if (indexc == 3) {
twocorrectchoice = "c"
}
if (indexd == 3) {
twocorrectchoice = "d"
}
//Question 2 Question
question2 = "2. Find the Standard Deviation of the following Data set: " + two1.toString() + ", " + two2.toString() + ", " + two3.toString() + ", " + two4.toString() + ", " + two5.toString();
//Question3
//define variables
var three1, threep
//Assign Random Integers
three1 = Math.floor(Math.random()*7)+2;
//find probability
if (three1 == 2) {
threep = 1/6;
}
else if (three1 == 3) {
threep = 2/6;
}
else if (three1 == 4) {
threep = 3/6;
}
else if (three1 == 5) {
threep = 4/6;
}
else {
threep = 5/6;
}
//Answer Choices
threecorrectanswer = threep.toFixed(3).replace(/\.?0+$/,"").toString();
threeanswer1 = (threep+(1/6)).toFixed(3).replace(/\.?0+$/,"").toString();
threeanswer2 = (threep-(1/6)).toFixed(3).replace(/\.?0+$/,"").toString();
threeanswer3 = (threep+0.5).toFixed(3).replace(/\.?0+$/,"").toString();
//Place Answer Choices into Array
threeanswerchoices = [threeanswer1, threeanswer2, threeanswer3, threecorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*threeanswerchoices.length);
var indexb = Math.floor(Math.random()*threeanswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*threeanswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*threeanswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
threea = threeanswerchoices[indexa];
threeb = threeanswerchoices[indexb];
threec = threeanswerchoices[indexc];
threed = threeanswerchoices[indexd];
if (indexa == 3) {
threecorrectchoice = "a"
}
if (indexb == 3) {
threecorrectchoice = "b"
}
if (indexc == 3) {
threecorrectchoice = "c"
}
if (indexd == 3) {
threecorrectchoice = "d"
}
//Question 3 Question
question3 = "3. When rolling a six-sided dice what is the probability of rolling a number less than " + three1.toString();
//Qestion4
//define variables
var four1, four2
//Assign Random Integers
do {
four1 = Math.floor(Math.random()*11)+2;
four2 = Math.floor(Math.random()*6)+2;
}
while (four1 >= four2);
//find combinations
four2fact = 1;
for (i = 1; i <= four2; i++) {
four2fact = four2fact*i
};
four1fact = 1;
for (i = 1; i <= four1; i++) {
four1fact = four1fact*i
};
four21fact = 1;
for (i = 1; i <= four2-four1; i++) {
four21fact = four21fact*i
};
fourc = four2fact/(four1fact*four21fact);
//Answer Choices
fourcorrectanswer = fourc.toString();
fouranswer1 = (Math.ceil(four2*four1)).toString();
fouranswer2 = (Math.ceil(four2fact)).toString();
fouranswer3 = (Math.ceil(four1fact)).toString();
//Place Answer Choices into Array
fouranswerchoices = [fouranswer1, fouranswer2, fouranswer3, fourcorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*fouranswerchoices.length);
var indexb = Math.floor(Math.random()*fouranswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*fouranswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*fouranswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
foura = fouranswerchoices[indexa];
fourb = fouranswerchoices[indexb];
fourc = fouranswerchoices[indexc];
fourd = fouranswerchoices[indexd];
if (indexa == 3) {
fourcorrectchoice = "a"
}
if (indexb == 3) {
fourcorrectchoice = "b"
}
if (indexc == 3) {
fourcorrectchoice = "c"
}
if (indexd == 3) {
fourcorrectchoice = "d"
}
//Qeustion 4 Question
question4 = "4. You are in charge of assigning " + four1.toString() + " of your coworkers to the party planning committee. " + four2.toString() + " of your coworkers are eligible to be part of this committee. How many different combinations of party planning commitees could you create?"
//Question5
//define variables
var five1, five2
//Get Random Integers
do {
five1 = Math.floor(Math.random()*11)+2;
five2 = Math.floor(Math.random()*11)+2;
}
while (five1 <= five2);
//find perm
five1fact = 1;
for (i = 1; i <= five1; i++) {
five1fact = five1fact*i
};
five12fact = 1;
for (i = 1; i <= five1-five2; i++) {
five12fact = five12fact*i
};
five2fact = 1;
for (i = 1; i <= five2; i++) {
five2fact = five2fact*i
};
five21fact = 1;
for (i = 1; i <= five2-five1; i++) {
five21fact = five21fact*i
};
fivep = five1fact/five12fact;
//Answer Choices
fivecorrectanswer = fivep.toString();
fiveanswer1 = (five1fact/five21fact).toString();
fiveanswer2 = (Math.ceil(five2fact/five2)).toString();
fiveanswer3 = (Math.ceil(five1fact/five2fact)).toString();
//Place Answers into Array
fiveanswerchoices = [fiveanswer1, fiveanswer2,fiveanswer3, fivecorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*fiveanswerchoices.length);
var indexb = Math.floor(Math.random()*fiveanswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*fiveanswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*fiveanswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
fivea = fiveanswerchoices[indexa];
fiveb = fiveanswerchoices[indexb];
fivec = fiveanswerchoices[indexc];
fived = fiveanswerchoices[indexd];
if (indexa == 3) {
fivecorrectchoice = "a"
}
if (indexb == 3) {
fivecorrectchoice = "b"
}
if (indexc == 3) {
fivecorrectchoice = "c"
}
if (indexd == 3) {
fivecorrectchoice = "d"
}
//Question 5 Question
question5 = "5. You are arranging cookies on plates. There are " + five1.toString() + " different types of cookies and you can place " + five2.toString() + " cookies on each plate. If each place has to have different types of cookies on it, how many different cookie arrangements can you make?"
//Question6
//define variables
var sixred, sixblue, sixgreen
//Assign Random Variables
do {
sixred = Math.floor(Math.random()*6)+1;
sixblue = Math.floor(Math.random()*6)+1;
sixgreen = Math.floor(Math.random()*6)+1;
}
while (sixred == sixgreen || sixred == sixblue || sixgreen == sixblue);
//Find p
sixn = sixred+sixblue+sixgreen;
sixnfact = 1;
for (i = 1; i <= sixn; i++) {
sixnfact = sixnfact*i
};
sixredfact = 1;
for (i = 1; i <= sixred; i++) {
sixredfact = sixredfact*i
};
sixbluefact = 1;
for (i = 1; i <= sixblue; i++) {
sixbluefact = sixbluefact*i
};
sixgreenfact = 1;
for (i = 1; i <= sixgreen; i++) {
sixgreenfact = sixgreenfact*i
};
sixp = sixnfact/(sixredfact*sixbluefact*sixgreenfact);
//Answer Choices
sixcorrectanswer = sixp.toString();
sixanswer1 = (sixnfact/(sixredfact*sixgreenfact)).toString();
sixanswer2 = (Math.ceil((sixnfact*sixredfact)/(sixred*sixblue*sixgreen))).toString();
sixanswer3 = (Math.ceil(sixnfact)/(sixblue*sixgreen*sixred)).toString();
//Place answers into Array
sixanswerchoices = [sixanswer1, sixanswer2, sixanswer3, sixcorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*sixanswerchoices.length);
var indexb = Math.floor(Math.random()*sixanswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*sixanswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*sixanswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
sixa = sixanswerchoices[indexa];
sixb = sixanswerchoices[indexb];
sixc = sixanswerchoices[indexc];
sixd = sixanswerchoices[indexd];
if (indexa == 3) {
sixcorrectchoice = "a"
}
if (indexb == 3) {
sixcorrectchoice = "b"
}
if (indexc == 3) {
sixcorrectchoice = "c"
}
if (indexd == 3) {
sixcorrectchoice = "d"
}
//Question 6 Question
question6 = "6. You have " + sixn.toString() + " colored tiles. You have " + sixred.toString() + " red tiles, " + sixblue.toString() + " blue tiles, " + sixgreen.toString() + " green tiles. How many unique ways can the tiles be arranged?"
//Question7
//define variables
var sevenred, sevenblue, sevenyellow
//Assign Random Values
sevenred = Math.floor(Math.random()*11)+1;
sevenblue = Math.floor(Math.random()*11)+1;
sevenyellow = Math.floor(Math.random()*11)+1;
//find p
sevenn = sevenred+sevenblue+sevenyellow;
seven1 = sevenred/sevenn;
seven2 = sevenyellow/(sevenn-1);
sevenp = seven1*seven2;
sevenp1 = seven1*(sevenyellow/sevenn);
sevenp2 = seven1+seven2;
sevenp3 = Math.abs(seven1-seven2);
//AnswerChoices
sevencorrectanswer = sevenp.toFixed(3).replace(/\.?0+$/,"").toString();
sevenanswer1 = sevenp1.toFixed(3).replace(/\.?0+$/,"").toString();
sevenanswer2 = sevenp2.toFixed(3).replace(/\.?0+$/,"").toString();
sevenanswer3 = sevenp3.toFixed(3).replace(/\.?0+$/,"").toString();
//Place answers into Array
sevenanswerchoices = [sevenanswer1, sevenanswer2, sevenanswer3, sevencorrectanswer];
//Randomize Answer Choices
do {
var indexa = Math.floor(Math.random()*sevenanswerchoices.length);
var indexb = Math.floor(Math.random()*sevenanswerchoices.length);
}
while (indexb == indexa);
do {
var indexc = Math.floor(Math.random()*sevenanswerchoices.length);
}
while (indexc == indexa || indexc == indexb);
do {
var indexd = Math.floor(Math.random()*sevenanswerchoices.length);
}
while (indexd == indexa || indexd == indexb ||
indexd == indexc);
sevena = sevenanswerchoices[indexa];
sevenb = sevenanswerchoices[indexb];
sevenc = sevenanswerchoices[indexc];
sevend = sevenanswerchoices[indexd];
if (indexa == 3) {
sevencorrectchoice = "a"
}
if (indexb == 3) {
sevencorrectchoice = "b"
}
if (indexc == 3) {
sevencorrectchoice = "c"
}
if (indexd == 3) {
sevencorrectchoice = "d"
}
//Question 7 Question
question7 = "7. You have " + sevenn.toString() + " colored marbles in a bag. There are " + sevenred.toString() + " red marbles, " + sevenblue.toString() + " blue marbles, and " + sevenyellow.toString() + " yellow marbles. What is the probability of picking a red marble first, then a yellow marble?"
//Question Slides
const myQuestions = [
{
question: question1,
answers: {
a: onea,
b: oneb,
c: onec,
d: oned
},
correctAnswer: onecorrectchoice
},
{
question: question2,
answers: {
a: twoa,
b: twob,
c: twoc,
d: twod
},
correctAnswer: twocorrectchoice
},
{
question: question3,
answers: {
a: threea,
b: threeb,
c: threec,
d: threed
},
correctAnswer: threecorrectchoice
},
{
question: question4,
answers: {
a: foura,
b: fourb,
c: fourc,
d: fourd
},
correctAnswer: fourcorrectchoice
},
{
question: question5,
answers: {
a: fivea,
b: fiveb,
c: fivec,
d: fived
},
correctAnswer: fivecorrectchoice
},
{
question: question6,
answers: {
a: sixa,
b: sixb,
c: sixc,
d: sixd
},
correctAnswer: sixcorrectchoice
},
{
question: question7,
answers: {
a: sevena,
b: sevenb,
c: sevenc,
d: sevend
},
correctAnswer: sevencorrectchoice
}
];
function buildQuiz() {
// we'll need a place to store the HTML output
const output = [];
// for each question...
myQuestions.forEach((currentQuestion, questionNumber) => {
// we'll want to store the list of answer choices
const answers = [];
// and for each available answer...
for (letter in currentQuestion.answers) {
// ...add an HTML radio button
answers.push(
``
);
}
// add this question and its answers to the output
output.push(
`
${currentQuestion.question}
${answers.join("")}
`
);
});
// finally combine our output list into one string of HTML and put it on the page
quizContainer.innerHTML = output.join("");
}
function showResults() {
// gather answer containers from our quiz
const answerContainers = quizContainer.querySelectorAll(".answers");
// keep track of user's answers
let numCorrect = 0;
// for each question...
myQuestions.forEach((currentQuestion, questionNumber) => {
// find selected answer
const answerContainer = answerContainers[questionNumber];
const selector = `input[name=question${questionNumber}]:checked`;
const userAnswer = (answerContainer.querySelector(selector) || {}).value;
// if answer is correct
if (userAnswer === currentQuestion.correctAnswer) {
// add to the number of correct answers
numCorrect++;
// color the answers green
answerContainers[questionNumber].style.color = "green";
} else {
// if answer is wrong or blank
// color the answers red
answerContainers[questionNumber].style.color = "red";
}
});
// show number of correct answers out of total
resultsContainer.innerHTML = `${numCorrect} out of ${myQuestions.length}`;
}
function showSlide(n) {
slides[currentSlide].classList.remove("active-slide");
slides[n].classList.add("active-slide");
currentSlide = n;
if (currentSlide === 0) {
previousButton.style.display = "none";
} else {
previousButton.style.display = "inline-block";
}
if (currentSlide === slides.length - 1) {
nextButton.style.display = "none";
submitButton.style.display = "inline-block";
} else {
nextButton.style.display = "inline-block";
submitButton.style.display = "inline-block";
}
}
function showNextSlide() {
showSlide(currentSlide + 1);
}
function showPreviousSlide() {
showSlide(currentSlide - 1);
}
const quizContainer = document.getElementById("quiz");
const resultsContainer = document.getElementById("results");
const submitButton = document.getElementById("submit");
// display quiz right away
buildQuiz();
const previousButton = document.getElementById("previous");
const nextButton = document.getElementById("next");
const slides = document.querySelectorAll(".slide");
let currentSlide = 0;
showSlide(0);
// on submit, show results
submitButton.addEventListener("click", showResults);
previousButton.addEventListener("click", showPreviousSlide);
nextButton.addEventListener("click", showNextSlide);
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