Young children need calcium in their diet to support the growth of their bones.

Question

Young children need calcium in their diet to support the growth of their bones. The Institute of Medicine provides guidelines on how much calcium should be consumed for people of different ages. One study examined whether or not a sample of children consumed an adequate amount of calcium, based on these guidelines. Since there are different requirements for children aged 5 to 10 years and for children aged 11 to 13 years, the children were classified into these two age groups. For each student, his or her calcium intake was classified as meeting or not meeting the requirement. There were 2019 children in the study. Here are the data:

A) How many children aged 5 to 10 were subjects in the calcium requirement study? (Give your answer as a whole or exact number.)

________ children aged 5 to 10 were subjects in the calcium requirement study.

B) What is the total number of children who did not meet the calcium requirement? (Give your answer as a whole or exact number.)

________ is the total number of children who did not meet the calcium requirement.

Two-way table for "met requirement" and age Met requirement Age (years) 5 to 10 11 to 13 No 194 548 Yes 868 409

Explanation / Answer

A) children 5 -10 = 194+868 = 1062

B) 194+548 = 742

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