Business, 29.12.2020 01:40 cupcake3103670

In a study conducted in 1980, researchers calculated the height difference between couples with kids in the UK. They found that the height difference between husband and wife follows a normal distribution with mean 7 inches and standard deviation equal to 4 inches. 1) What is the difference in height for the middle 68% of the couples in the study?

2) Calculate the percentage of couples in which the man is 5 inches taller than the woman.

3) What percentage of couples the woman is taller than the man?

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