Carl and Bethany roll a pair of dice 1000 times and keep track of the sum on the two dice. The frequency of each sum is listed below and shown in the histogram.

Sum Frequency
2.......................26
3.......................56
4.......................83
5.....................110
6.....................145
7.....................162
8.....................149
9.....................114
10.....................73
11.....................61
12.....................21
a. Graph this histogram on your calculator. List the window values needed for it to look like the histogram above.
b. Explain why the histogram is mound-shaped.
c. Describe how to find the mean sum and the median sum for this data set.

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Probability Experiment E 200 150 100 50 0 2 4 6 8 10 12 Sum on two dice