The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and the standard deviation is 1.0 mmol/l. Assume that cholesterol levels are normally distributed and a random sample of 21 women are selected.
It is possible with rounding for a probability to be 0.0000.
THE QUESTIONS ARE IN THE PICTURE THANK YOU
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