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Back to 4.6 Poisson Distribution (Optional)

4.6 Exercise 33

Avg difficulty 2.5

The average number of children a Spanish woman has in her lifetime is 1.47. Suppose that one Spanish woman is randomly chosen.

  1. In words, define the random variable X.
  2. List the values that X may take on.
  3. Give the distribution of X. X ~ _____(_____,_____)
  4. Find the probability that she has no children.
  5. Find the probability that she has fewer children than the Spanish average.
  6. Find the probability that she has more children than the Spanish average.

OpenStax Statistics, 4.6 Poisson Distribution (Optional), exercise 33

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