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24 April, 20:46

A financial analyst determines the yearly research and development investments for 50 blue chip companies. She notes that the distribution is distinctly not bell-shaped. If the 50 dollar amounts are converted to z-scores, what can be said about the standard deviation of the 50 z-scores?

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  1. 24 April, 20:47
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    standard deviation of the 50 z-scores will equal to 1

    Explanation:

    Data provided in the question:

    The 50 dollars amount is converted to z-score

    Now,

    The z-score follows the distribution in which the mean is 0 and the value of the standard deviation is 1.

    The above value does not get affected due to any distribution of raw scores.

    Therefore,

    The standard deviation of the 50 z-scores will equal to 1
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