Suppose the doctors at a local office take a health survey of 100 adult female p

Question

Suppose the doctors at a local office take a health survey of 100 adult female patients with similar weight who have had appointments in the last week. According to their medical file, the 100 participants all weigh between 140 - 149 lbs. One of the survey questions asks participants to list their current weight. The accompanying tables show the relative frequency of weights measured by the physician for the 100 participants and the relative frequency of weights recorded in the survey for the 100 participants. Note that some of the weights reported in the survey did not fall between 140 - 149 lbs. Weights reported by physician (to the nearest pound) Weights recorded by participants Weight (in pounds) 140 141 142 143 144 145 146 147 148 149 Total Relative frequency 0.12 0.09 0.17 0.06 0.14 0.11 0.04 0.10 0.09 0.08 1.00 Weight (in pounds) 140 141 142 143 144 145 146 147 148 149 Total Relative frequency 0.32 0.04 0.05 0.04 0.07 0.23 0.01 0.01 0.03 0.02 0.82 Select the statements that are accurate regarding the given data sets Survey results are just as accurate when participants are asked their weight as when they are weighed with a scale When reported by the individual, weights are often rounded to the nearest 5 lbs The data suggest that adult women tend to round down their weight. More women in this survey weigh 140 lbs than any other reported weight. When reported by the individual, weights are often rounded to the nearest pound

Explanation / Answer

In the second table, 140 lb and 145 lb are having the highest relative frequency which shows that participants tend to round off their weights to nearest 5 pounds. Also, the observed relative frequencies are more than reported for higher weights which shows that women also tend to round down thier weights.

Hence,

Option B and Option C are correct.

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