Investigating Middle School Mathematics On-Line

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Your class is conducting an experiment to study geometric sequences. The class forms a line. The first person takes a whole pizza, divides it in half, keeps half, and hands the other half to the next person. The next persons in line do the same thing with their pieces. What portion of the whole pizza does the second person in line get?

Ms. Farquand recorded the number of sick days taken last year by each of her employees, as shown in the table.

Employee	Number of Sick Days
Earl	0
Chantal	3
Sarita	4
Ryan	2
Simone	7
Davin	6
Javier	8
Marty	4
Martina	3

Find the mean number of days employees were sick. If necessary, round your answer to the nearest hundredth.

A shop owner wants to market a new vest. The vest distributor will charge a reduced price for one size of the owner’s choice. The owner knows that the size selected should be the mode of the sizes the shop sells. In one typical day, the shop owner sold the following sizes of vests:

40, 41, 41, 44, 44, 37, 38, 42, 41, 39, 44, 39, 37, 44, 42

Find the mode of the sizes?

Use the frequency table to find the mean number of working TV sets in students’ homes.

TV Sets in Students’ Homes
Number of TV Sets	Tally	Frequency
0		1
1		8
2		9
3		4
4		3

Mike was in charge of collecting contributions for the Food Bank. He received contributions of $13, $34, $26, $31, and $28 from five co-workers. Find the median value of these contributions.