Question

a group of people were surveyed and asked how many days they exercised in the month of april. the results are shown in the histogram above. which statement is true? a) 3% responded that they only exercised 1 - 5 days in april. b) more than half responded that they exercise 11 - 20 days in april. c) the fewest number of days that someone exercised was one. d) 55% responded that they exercised more than half the days of april.

Explanation:

Step1: Analyze Option A

No information about percentage is given in histogram to support 3% exercised 1 - 5 days.

Step2: Analyze Option B

We cannot tell from the histogram if more than half exercised 11 - 20 days as no frequency counts or total count for comparison are given.

Step3: Analyze Option C

The histogram shows number of days in intervals, not single - day values, so we can't say the fewest was one day.

Step4: Analyze Option D

Half of April is 15 days. The sum of the frequencies of intervals 16 - 20, 21 - 25 and 26 - 30 likely represents more than half of the total data (since the bars for these intervals are relatively large compared to others).

Answer:

D