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adelina 88 [10]
3 years ago
8

The age that women in Virginia decide to get married for the first time is normally distributed with an average of 26.3 years an

d a standard deviation of 3.1 years. Suppose that 25 Virginian women are randomly selected and asked about their age at the beginning of their first marriage, find the probability that the sample mean age is between 25 and 28 years
a.0.9821
b.0.6400
c.0.9790
d.0.9969
Mathematics
1 answer:
Nuetrik [128]3 years ago
3 0

Answer:

The answer is 0.9789 approximately equal to 0.9790

Step-by-step explanation:

See the attached files for the details, hope it is clearly understood.

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
4f5c24a39cc9fe2c66cb13edb93a2404.png
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