Question

Emily hits 60% of her free throws in basketball games. She had 25 free throws in last week's game. What is the variance of Emily's hits?

Answer 1

The variance is calculated using:

`\text{variance}=\text{npq}`

n is the number of throw

Hence, n=25

p is the probability of success

Hence, p=60%=0.6

And q =1-p

Hence q = 0.4

Therefore the variance is calculated as

`\text{variance}=25*0.6*0.4`

Calculate the value:

`\text{variance}=6`