Author Question: In a certain class of students, there are 8 boys from Wilmette, 6 girls from Winnetka, 8 girls from ... (Read 59 times)

vHAUNG6011 · **on:** Aug 2, 2018

In a certain class of students, there are 8 boys from Wilmette, 6 girls from Winnetka, 8 girls from Wilmette, 7 boys from Glencoe, 5 boys from Winnetka and 6 girls from Glenoce.

If the teacher calls upon a student to answer a question, what is the probability that the student will be a boy?
A) 0.5 B) 0.647 C) 0.2 D) 0.375

Question 2

If two variables are completely unrelated, robs .

a. equals zero
b. equals either +1.00 or -1.00
c. is a large value but not +1.00 or -1.00
d. is greater than 1.00