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3 years ago

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The mean of the temperatures in the chart is 24° with standard deviation of 4°. How many years had temperatures within one stand

ard deviation of the mean?

2 answers:

Dmitrij [34]3 years ago

6 0

The answer is B) 25

You're welcome.

lions [1.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

Given: The mean of the temperatures in the chart is 24° and standard deviation is 4°.

To find: How many years had temperatures within one standard deviation of the mean

Solution: Mean temperature μ = 24 , standard deviation σ =4

The lower and upper bound for temperature within one standard deviation of the mean is given as:

Lower bound = μ - σ = 24 - 4=20

Thus, the Lower bound is = 20

Upper bound = μ + σ = 24+ 4=28

Thus, the Upper bound is = 28

Now, The temperature value between (Lower bound, Upper bound) that is (20, 28) is said to be within one standard deviation of the mean.

Hence 27° is the temperature value that is within one standard deviation of mean.

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