Question

A professor wants to conduct a study to know whether the grades she gives to her students affect their evaluations of her. She teaches four classes of ten students each. She has a theory that the grades and her evaluations are affected by the following characteristics of students:
•A student's gender
•A student's age
•The hours of sleep a student gets per night
•A student's year in the college
•A student's current grade
•The number of pets a student owns

Answer 1

well make a histogram and use intervals and then write a hint