Math Problem Statement

a. Find the probability of getting exactly 6 girls in 8 births.

Find the probability of getting exactly 6 girls in 8 births.

Solution

To find the probability of getting exactly 6 girls in 8 births, we need to look at the corresponding value of P(x)P(x) when x=6x = 6 in the provided table.

From the table:

  • When x=6x = 6 (the number of girls), P(x)=0.107P(x) = 0.107.

Thus, the probability of getting exactly 6 girls in 8 births is P(6)=0.107P(6) = 0.107.

Would you like a detailed explanation of how this table might have been constructed, or have any other questions?

Here are 5 follow-up questions for further exploration:

  1. What is the probability of getting at most 4 girls in 8 births?
  2. What is the probability of getting at least 5 girls in 8 births?
  3. How would you calculate the expected number of girls in 8 births using this table?
  4. What is the probability of getting exactly 4 or exactly 6 girls in 8 births?
  5. How would you compute the variance for the number of girls in this distribution?

Tip: The sum of all probabilities P(x)P(x) for x=0x = 0 to x=8x = 8 must equal 1 in a valid probability distribution. Always check this when dealing with such tables.

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Math Problem Analysis

Mathematical Concepts

Probability Distribution
Discrete Probability

Formulas

P(x) = Probability of exactly x successes in n trials

Theorems

Binomial Theorem

Suitable Grade Level

Grades 9-12