AB ___ BC Choose the relationship symbol that makes the statement true. < = >

answer:

>

Step-by-step explanation:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify