Mathematics, 30.10.2019 10:31 kx123

Some iq tests are standardized to a normal model n(100,10).
a) what cutoff value bounds the highest 10% of all iqs?
b) what cutoff value bounds the lowest 20% of the iqs?
c) what cutoff values bound the middle 90% of the iqs?
a) the cutoff value is
(round to one decimal place as needed.)

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Some iq tests are standardized to a normal model n(100,10).
a) what cutoff value bounds the hi...