The mean age of a first-time parent is 28.2 years old. Assume 𝜎𝜎 = 4.3 years and that these ages are nor

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answerhappygod
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The mean age of a first-time parent is 28.2 years old. Assume 𝜎𝜎 = 4.3 years and that these ages are nor

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The mean age of a first-time parent is 28.2 years old. Assume 𝜎𝜎 =
4.3 years and that these ages are
normally distributed.

1a. Draw a sketch of the population distribution with the values of
πœ‡πœ‡, πœ‡πœ‡Β± 𝜎𝜎, πœ‡πœ‡Β± 2𝜎𝜎, π‘Žπ‘Žπ‘Žπ‘Žπ‘Žπ‘Ž πœ‡πœ‡Β± 3𝜎𝜎
labeled.
b.Find the probability that a random first-time parent is more
than 25 years
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