The irregular figure on the left has been decomposed into the figures on the right.
2 answers:
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Answer:
Step-by-step explanation:
Given
Required
This is calculated as:
Since, it is a probability with replacement, we have:
So, we have:
Using the normal distribution, we got that expression for the z-score of her test score is
it's a type of probability distribution which is symmetric about the mean, it gives data near the mean are more frequent than data far from the mean.
Given that mean =
and standard deviation =
X=73
we know that formula of z-score is
Hence Z-score can be calculated as
Using the normal distribution, we got that expression for the z-score of her test score is
To learn more about the normal distribution visit : brainly.com/question/24663213