School administrators asked a group of students and teacher which of two school logo ideas, logo A or logo B, they prefer. This table shows the result. Are being a student and preferring logo B independent events? Why or why not?

A. No, they are not independent, because P(student) = 0.8 and P(student | logo B) = 0.89.

B. No, they are not independent, because P(student) = 0.8 and P(student | logo B) = 0.78.

C. Yes, they are independent, because P(student) = 0.8 and P(student | logo B) = 0.89.

D. Yes, they are independent, because P(student) = 0.8 and P(student | logo B) = 0.78.

a

step-by-step explanation:

a

c: lkllmn.

hope it's you

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,