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In​ nutrition, the recommended daily allowance​ (RDA) of a vitamin is a number set by the...

In​ nutrition, the recommended daily allowance​ (RDA) of a vitamin is a number set by the government as a guide to an​ individual's daily vitamin intake.​ Actually, vitamin needs vary drastically from person to​ person, but the needs are very closely approximated by a normal curve. To calculate the​ RDA, the government first finds the average need for vitamins among people in the population and then the standard deviation. The RDA is defined as the mean plus 2.5 times the standard deviation. Find the recommended daily allowance for a vitamin given that the mean is 650 units​, and the standard deviation is 47 units.

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Answer:

Given that mean - 650 units

SD = 47

Recommended allowance = Mean + 2.5 *(SD)

= 650 + 2.5*47

= 767.5 units

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