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16 July, 01:20

Iq scores on the wais test approximate a normal curve with a mean of 100 and a standard deviation of 15. what iq score is identified with

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  1. 16 July, 05:04
    0
    IT would be

    (a) P (130.8062 < x) = P (2.0537 < z) = 0.02

    (b) P (x < 80.7767) = P (z < - 1.2816) = 0.1

    (c) P (96.1998 < x) = P (-0.2533 < z) = 0.6

    (d) P (70.6005 < x < 129.3995) = P (-1.9600 < z < 1.9600) = 95 %

    (e) P (61.3626 < x < 138.6374) = P (-2.5758 < z < 2.5758) =.99
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