Has the percentage of young girls drinking milk changed over time? Use the table

Question

Has the percentage of young girls drinking milk changed over time? Use the table below to answer questions 17 and 18. Nationwide Food Survey Years Yes No Total 1987-1988 1989-1991 1994-1996 Total 1222 927 2149 354 226 580 502 335 837 366 366 732 Drinks Fluid Milk Find the following. Show work for each, including the fraction and your percent to the nearest tenth of a percent, using the equation edito a. What percent of the young girls reported that they drink milk? b. What percent of the young girls were in the 1989-1991 survey? c. What percent of the young girls who reported that they drink milk were in the 1989-1991 survey? d. What percent of the young girls in 1989-1991 reported that they drink milk? Q?

Explanation / Answer

Ans:

a)P(yes)=1222/2149=0.569 or 56.9%

b)P(1989-1991)=837/2149=0.389 or 38.9%

c)P(1989-1991/Yes)=502/1222=0.411 or 41.1%

d)P(yes/1989-1991)=502/837=0.600 or 60.0%

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