What is the value of -3r+8 when r=4
a. -12
b. -4
c. 4
d. 12

I think your answer is B. -4

Step-by-step explanation:

-3*4+8

-12+8

-4

B -4

Step-by-step explanation: simple multiplication, 4x-3+8, you get -12 then add 8 giving you negative 4.

binomial distribution

median= 2

range = 7-0 = 7

how to find median?

no. of term=28

median=(28+1)/2=14.5th term

the 14th and 15th term are 2, therefore the median is (2+2)/2 = 2