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Posted by on Tuesday, March 26, 2013 at 7:42pm.

1.

Given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, –43, find the mean, median, mode, and range.
(1 point)

mean = –28.5, median = –29.1, mode = –49, range = 40
mean = –29.1, median = –49, mode = –28.5, range = 41
mean = –49, median = –29.1, mode = –28.5, range = 41
mean = –29.1, median = –28.5, mode = –49, range = 40

2.

Given the data 21, 13, 13, 37, 13, 23, 25, 15:
a. Identify the outlier in the data.
b. Find the mean with the outlier.
C. Find the mean without the outlier.
(1 point)

13; 21; 17.6
37; 20; 17.6
37; 17.6; 20
13; 17.6; 21

15.
A survey about the student government program at a school finds the following results:

110 students like the program.
120 students think the program is unnecessary.
210 students plan on running for student government next year.

If a circle graph were made from this data, what would the measure of the central angle be for the group that thinks the program is unnecessary? (1 point)

98º
27º
90º
172º

My answers:
1. mean = –28.5, median = –29.1, mode = –49, range = 40
2. 37; 20; 17.6
15. 98º

  • Math Ms. Sue please - , Tuesday, March 26, 2013 at 7:59pm

    I disagree with your first answer. The other two are right.

  • Ms. Sue please - , Tuesday, March 26, 2013 at 8:16pm

    Okay thank you. Is the first answer "mean = –29.1, median = –28.5, mode = –49, range = 40"?

  • Math Ms. Sue please - , Tuesday, March 26, 2013 at 8:19pm

    You're welcome.

    Yes, now you have the right answer for the first one.

  • Math Ms. Sue please - , Tuesday, March 26, 2013 at 8:38pm

    Thank you!

  • Math Ms. Sue please - , Tuesday, March 26, 2013 at 8:39pm

    You're welcome.

  • Math Ms. Sue please - , Wednesday, March 16, 2016 at 6:10pm

    Thank you!

  • Math Ms. Sue please - , Tuesday, May 24, 2016 at 7:17pm

    what where the answers. can you please help immediately. thank you

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