Is -5.5 an integer because it is negative?

-5.5 is not an integer

Step-by-step explanation:

Integers are defined through postive integers, negative integers, and zero.

Positive integers refer to numbers such as 1, 2, 3, 4...

Negative integers refer to numbers such as -1, -2, -3, -4...

Zero refers to 0

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