Math Problem Statement
Solution
This problem involves calculating the probability that a baseball player with a batting average of 0.305 will get at least 2 hits in 7 at-bats. Since it involves a binomial probability calculation, let's break it down.
Step-by-step approach:
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Define the binomial distribution parameters:
- (the probability of getting a hit in one at-bat)
- (number of at-bats)
- We need to find the probability of getting at least 2 hits (so ).
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Complement rule: To make the calculation easier, we can use the complement rule: We'll first calculate and using the binomial probability formula:
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Calculate :
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Calculate : First, calculate , so:
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Calculate : Now, subtract the two probabilities from 1:
Thus, the probability that the player will get at least 2 hits in the game is approximately 0.3915.
Would you like more details on any of these steps?
Here are some related questions you could explore:
- How does the binomial distribution apply to real-life situations like sports?
- What is the significance of using the complement rule in probability?
- How would the probability change if the player's batting average increased to 0.400?
- What if the player only had 5 at-bats instead of 7? How would that affect the probability?
- Can we use a different probability distribution for this kind of problem?
Tip: Always double-check calculations involving exponentiation and factorials in binomial distributions to avoid errors.
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Math Problem Analysis
Mathematical Concepts
Probability
Binomial Distribution
Complement Rule
Formulas
P(X = k) = binom(n, k) * p^k * (1 - p)^(n - k)
P(X ≥ 2) = 1 - P(X = 0) - P(X = 1)
Theorems
Binomial Theorem
Suitable Grade Level
Grades 10-12
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