Assume that all percentages shown in the histogram are whole numbers. Each of th

Question

Assume that all percentages shown in the histogram are whole numbers. Each of the bars in this histogram includes only the left endpoint of the class except for the last bar, which also includes the right endpoint.

-What percentage of respondents said that they read less than 90 minutes per week?

_______ %

-How many respondents said that they read between 60 and 120 minutes per week?

_______ respondents

-Which of the following statements about the amount of time the respondents spend reading is true?

A) The greatest amount of time an individual respondent spends reading each week is 270 minutes.

B) A majority of respondents spend between 30 and 60 minutes reading per week.

C)More than half of the respondents spend at least 60 minutes reading per week.

D)Fewer than 10% of respondents spend at least 210 minutes reading each week.

Can someone please help me figure this out! I'd greatly appreciate it!! Thank you

30T 20- E 10 30 90 120 150 180210240 Weekly minutes of reading

Explanation / Answer

total % are:

percentage of respondents said that they read less than 90 minutes per week =(26+28+17)%=71%

number of respondents said that they read between 60 and 120 minutes per week =(17+11)%*600 =168

correct option are:

B) A majority of respondents spend between 30 and 60 minutes reading per week.

D)Fewer than 10% of respondents spend at least 210 minutes reading each week.

range relative frequency 0-30 26 30-60 28 60-90 17 90-120 11 120-150 7 150-180 5 180-210 3 210-240 2 240-270 1

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