"questionText":"Why statistics and probability are important for data science?",
"answerOptions":[
"answerOptions":[
{
{
"answerText":"True",
"answerText":"Because you cannot operate on data without knowing math",
"isCorrect":"false"
},
{
"answerText":"Because data science is a science and has strong formal foundation",
"isCorrect":"true"
"isCorrect":"true"
},
},
{
{
"answerText":"False",
"answerText":"Because we want to keep uneducated people from doing data science",
"isCorrect":"false"
"isCorrect":"false"
}
}
]
]
},
},
{
{
"questionText":"q2",
"questionText":"Can you get heads 10 times in a row when throwing a coin?",
"answerOptions":[
"answerOptions":[
{
{
"answerText":"classical ML was invented first",
"answerText":"yes",
"isCorrect":"false"
},
{
"answerText":"the use of neural networks",
"isCorrect":"true"
"isCorrect":"true"
},
},
{
{
"answerText":"deep learning is used in robots",
"answerText":"no",
"isCorrect":"false"
"isCorrect":"false"
}
}
]
]
},
},
{
{
"questionText":"q3",
"questionText":"When you throw a dice, what is the probability of getting an even number?",
"answerOptions":[
"answerOptions":[
{
{
"answerText":"to automate the solving of multi-dimensional problems",
"answerText":"1/2",
"isCorrect":"false"
"isCorrect":"true"
},
},
{
{
"answerText":"to customize a shopping experience based on the type of customer",
"answerText":"1/3",
"isCorrect":"false"
"isCorrect":"false"
},
},
{
{
"answerText":"both of the above",
"answerText":"impossible to tell",
"isCorrect":"true"
"isCorrect":"false"
}
}
]
]
}
}
@ -389,49 +389,53 @@
"title":"Statistics and Probability - Post-Quiz",
"title":"Statistics and Probability - Post-Quiz",
"quiz":[
"quiz":[
{
{
"questionText":"quiz 1 question 1",
"questionText":"We want to prove that basketball players are taller than average people. We have collected heights of 20 people from both groups. What do we need to do?",
"answerOptions":[
"answerOptions":[
{
{
"answerText":"True",
"answerText":"compare means",
"isCorrect":"true"
"isCorrect":"false"
},
},
{
{
"answerText":"False",
"answerText":"collect more data, 20 is not enough!",
"isCorrect":"false"
"isCorrect":"false"
},
{
"answerText":"use t-test",
"isCorrect":"true"
}
}
]
]
},
},
{
{
"questionText":"q2",
"questionText":"How can we demonstrate that income of a person is dependent on the level of education?",
"answerOptions":[
"answerOptions":[
{
{
"answerText":"classical ML was invented first",
"answerText":"compute correlation coefficient",
"isCorrect":"false"
"isCorrect":"true"
},
},
{
{
"answerText":"the use of neural networks",
"answerText":"divide into educated and non-educated cohorts and compute means",
"isCorrect":"true"
"isCorrect":"false"
},
},
{
{
"answerText":"deep learning is used in robots",
"answerText":"use t-test",
"isCorrect":"false"
"isCorrect":"false"
}
}
]
]
},
},
{
{
"questionText":"q3",
"questionText":"We throw the dice 100 times and compute the average value. What would be the distribution of the result?",
"answerOptions":[
"answerOptions":[
{
{
"answerText":"to automate the solving of multi-dimensional problems",
"answerText":"uniform",
"isCorrect":"false"
"isCorrect":"false"
},
},
{
{
"answerText":"to customize a shopping experience based on the type of customer",
Dmitri Soshnikov
4 years ago