Question

A student surveyed 100 students and determined the number of students who take statistics or calculus among seniors and juniors. Here are the results.
Let A be the event that the student takes statistics and B be the event that the student is a senior.
What is P(A and B)?
A. 0.15
B. 0.33
C. 0.47
D. 0.68

Answer 1

Answer:

A) 0.15

P(A and B) = 0.68

Step-by-step explanation:

edge 2020

Answer 2

Pr ( A & B ) , ie Probability (Senior Student with Statistics) = 0.15

Given : Event A = Student is senior, Event B = Student takes statistics

• Total Students = Seniors with Statistics + Juniors with Statistics + Seniors with Calculus + Juniors with Calculus = 15 + 18 + 35 + 32 = 100 students

• Pr (A & B) , ie Probability (Senior Student with Statistics) = 15 students

Pr (A & B) = Favourable Students / Total Students = 15 / 100

P = 0.15

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