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Average age of university students was found to be 24 with a standard deviation of 2. What age group is within 2 standard deviation of mean?

6 Answers

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  • 4 days ago

    thanks for two.

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  • 4 days ago

    This would be(24 +-4)= 20 to 28 Year old group.

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  • TomV
    Lv 7
    6 days ago

    24 ± 2(2) = 24±4

    Students between the ages of 20 and 28 are within 2 sigma of the mean

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  • 6 days ago

    each std dev = 2 units

    ∴ two std devs = 4 units

    within 2 std devs: 

    24 - 4 ≤  age ≤ 24 + 4

    20 ≤ age ≤ 28

    age group between 20 and 28

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  • 6 days ago

    probably two yrs before or after that

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  • Mean +/- 2 * Standard_Deviation

    24 +/- 2 * 2 =>

    20 , 28

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