(a)
To calculate: The probability that the first strike in a game comes in the third frame.
The probability that the first strike in a game comes in the third frame.is 0.144.
Given information:
The bowlers make a strike on 40% of the frames.
P(S) = 40% = 0.4
Formula used:
Use the complement rule:
Calculation:
Let S = strike
The bowlers make a strike on 40% of the frames.
P(S) = 40% = 0.4
Substitute 0.4 for
The first strike occurs in the third frame when two frames did not result in a strike and the 3rd frame resulted in a strike.
P (First strike in the third frame) = P(not S)×P(not S)×P(S) ...... (2)
Substitute 0.4 for
Hence, the probability that the first strike in a game comes in the third frame.is 0.144.
(b)
To calculate: The probability that she makes a strike in at least one of the first 5 frames.
The probability that she makes a strike in at least one of the first 5 frames.is 0.922.
Given information:
The bowlers make a strike on 40% of the frames.
P(S) = 40% = 0.4
Formula used:
Definition of binomial probability:
Calculation:
n= number of trials=5
p=probability of success=40%=0.40
The number of successes among a fixed number of independent trials at a constant
probability of success follows a binomial distribution:
Substitute 0.4 for
Use the complement rule:
Substitute 0.07776 for
Hence, the probability that she makes a strike in at least one of the first 5 frames.is 0.922
(c)
To calculate: The probability that she bowls an entire game (10 frames) without a strike.
The probability that she bowls an entire game (10 frames) without a strike is 0.0060.
The bowlers make a strike on 40% of the frames.
P(S) = 40% = 0.4
Formula used:
Definition of binomial probability:
Calculation:
n= number of trials=5
p=probability of success=40%=0.40
The number of successes among a fixed number of independent trials at a constant
probability of success follows a binomial distribution:
Substitute 0.4 for
Hence, the probability that she bowls an entire game (10 frames) without a strike is 0.0060.
Chapter 10 Solutions
PRECALCULUS:...COMMON CORE ED.-W/ACCESS
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