Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. what is the output of the function f(x) = x + 21 if the input is 4? when the input is 4, the output of f(x) = x + 21 is ?

The output = 25

Step-by-step explanation:

∵ f(x) = x + 21

∵ The input is 4 ⇒ x = 4

∴ the output is the value of f(4)

∴ f(4) = x + 21 = 25

∴ The output is 25

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

i dont know sorry

step-by-step explanation: