Question

# A longitudinal study on human growth is done. Height and weight measurements of 400 individuals were...

A longitudinal study on human growth is done. Height and weight measurements of 400 individuals were taken at ages 5, 17 and 24, resulting in six sets of data:

heights of all individuals at age 5 weights of all individuals at age 5,   heights of all individuals at age 17, weights of all individuals at age 17, heights of all individuals at age 24, and weights of all individuals at age 24.

Which of the following correlations  is  likely to be the greatest?

Weight at age 17 and height at age 17.

Weight at age 5 and weight at age 17.

Height and age 17 and height at age 24.

Weight at age 17 and weight at age 24.

Weight and height at the same age should be most correlated. Hence, the greatest correlation will be between weight at age 17 and height at age 17.

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