Answer:
D
Step-by-step explanation:
So we have the expression:
Combine like terms:
Add or subtract:
Simplify:
Our answer is D
Mary had four friends over to study for a test. Before her friends arrived, she baked four pies to share equally among herself a
1 answer:
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Answer:
The standard deviation of the age distribution is 6.2899 years.
Step-by-step explanation:
The formula to compute the standard deviation is:
The data provided is:
X = {19, 19, 21, 25, 25, 28, 29, 30, 31, 32, 40}
Compute the mean of the data as follows:
Compute the standard deviation as follows:
Thus, the standard deviation of the age distribution is 6.2899 years.