Find the mdi score that is the 90th percentile

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Reference no: EM132857206

The Mental Development Index (MDI) of the Bayley Scales of Infant Development is a standardized measure used in studies with high-risk infants. It has approximately a normal distribution with a mean of 100 and a standard deviation of 16.

(a.) What proportion of children have a MDI of at least 120?

(b.) What proportion of children have a MDI between 80 and 120?

(c.) Find the MDI score that is the 90Th percentile

(d.) Find the lower quartile, median, and upper quartile of MDI

Reference no: EM132857206

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