Amanda surveyed 20 juniors and seniors at Delmark Highschool to find the number of hours per week they spend working at part time jobs. Her results are shown below

Junior - 20,10,20,15,0,0,10,20,15
Senior - 20,20,10,10,0,0,0,10,0,10

Which statement about the data is true?

A - The range of hours worked is the same for juniors and seniors.

B - The mean , median, and mode for the juniors surveyed fall within 3-hour range.

C - The mean number of hours worked by the seniors surveyed is 12.

D - The mean number of hours worked is the same for juniors and seniors.

I think it is A because the range for both juniors and seniors is 20. I also think it is B.

-Please help thank you!

3 answers

think not on B.

So, is it A?

Yes, A.