Question: 1. In a given normal distribution, the population mean is 60 and the population standard deviation is 2.5. Find the corresponding standard score or z-score

1. In a given normal distribution, the population mean is 60 and the population standard deviation is 2.5. Find the corresponding standard score or z-score of the following values:

a. 73 b. 84 c. 62

Formula:Z=x

Z=2.5x60 2. The mean height of grade 11 students at a certain university is 150cm and the standard deviation is 12cm. Assuming that the heights are normally distributed, what percent of the heights is:

a. greater than 156cm b. less than 145cm c. between 142 and 152cm

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