All formulas have how many variables?
o
a. more than one
o
b. less than two
o
c. more than two
o
d. exactly two

The correct option in this case is A.) more than one.

Step-by-step explanation:

All formulas have how many variables?

The correct option in this case is A.) more than one.

b) the dogs need to shift their focus to human scent.

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