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The heights, H of Malaysian female are known to be normally distributed with a mean of 165.1cm and a standard deviation of 38.1cm. (a) Find

The heights, H of Malaysian female are known to be normally distributed with a mean of 165.1cm and a standard deviation of 38.1cm.

(a) Find the value of h if (>)=0.75.

(b) A random sample of 30 Malaysian females was selected. Find the probability that the mean height of these females is between 162.5cm and 172.5cm.

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