Plz help me with these quistions lol plz i need help its due really soon

The first one is 115,000,000

The 5 to the power of 3 times 7 is 875

The next one is 72,739

The last one is 108

Step-by-step explanation:

Hope this helps

Correct me if this is wrong

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