In the population of young children eligible to participate in a study of whethe

Question

In the population of young children eligible to participate in a study of whether or not their calcium intake is adequate, 48% are 5 – 10 years of age and 52% are 11 to 13 years of age.

18% have inadequate calcium intake, given that they are 5 – 10 years of age. 57% have inadequate calcium intake, given that they are 11 – 13 years of age.

Answer the following questions:

1- What is the probability that a child age 5 – 10 years old and have inadequate calcium intake? (Round your answer to 3 decimal places).

2- What is the probability that a child age 11 – 13 years old and have inadequate calcium intake? (Round your answer to 3 decimal places).

3- What is the probability that a child age 5 – 10 years old and have adequate calcium intake? (Round your answer to 3 decimal places).

Explanation / Answer

Q1) Probability that a child age 5 – 10 years old and have inadequate calcium intake = 0.18*0.48 = 0.086

Q2) probability that a child age 11 – 13 years old and have inadequate calcium intake = 0.52*0.57 = 0.296

Q3) probability that a child age 5 – 10 years old and have adequate calcium intake = 0.82*0.48 = 0.394

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