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1 July, 04:46

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

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Answers (2)
  1. 1 July, 04:53
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    The answer is B) 25

    You're welcome.
  2. 1 July, 05:09
    0
    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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