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mahamedbarry64
12 plz give me brainiest  if i am right
jcherry99
Short answer = 12
Givens
David throws 8 strikes out of 10 pitches
He has a sample of 15 pitches.

Question
How many strikes should he throw out of 15?

Formula
P(strikes) = number of strikes / Sample size

Substitute and solve.
P(strikes) = 8/10
P(strikes) = 0.8

If you throws 15 pitches it should be
Expected_Value (15) = P(strikes) * larger sample
Expected_value (15) = 0.8 * 15
Expected_value (15) = 12