The role of child laborers on Africa's colonial-era diamond mines was the subject of research published in the Journal of Family History (Vol. 35, 2010). One particular mining company lured children to the mines by offering incentives for adult male laborers to relocate their families close to the diamond mine. The success of the incentive program was examined by determining the annual accompaniment rate, i.e., the percentage of wives (or sons, or daughters) who accompanied their husbands (or fathers) in relocating to the mine. Information from the journal article was used to simulate accompaniment rates for nine consecutive years. Those rates are shown in the table below.
a. Find the correlation coefficient relating the accompaniment rates for wives and sons. Interpret this value.
b. Find the correlation coefficient relating the accompaniment rates for wives and daughters. Interpret this value.
c. Find the correlation coefficient relating the accompaniment rates for sons and daughters. Interpret this value.

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