Decide whether each equation is true for all, one, or no values of x.
1 answer:
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Answer:
0.3569 is the probability that they have a mean pregnancy between 266 days and 268 days.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 268 days
Standard Deviation, σ = 15 days
We are given that the distribution of lengths of pregnancies is a bell shaped distribution that is a normal distribution.
Formula:
Standard error due to sampling =
P(pregnancy between 266 days and 268 days)