P - q i believe because
p = total average
q = average of ac
x = average of bd
p - q = x
Answer:
40%
Step-by-step explanation:
6/15=favorable amount/total amount
6/15=2/5
2/5*20
The answer is 96 F,O, >,< or = 13 C. Hop this helps.
The mean of the probability distribution is given by the expected value given by

The variance of the probability distribution is given by

The standard deviation is given by