2.3 Measures of the Center of the Data 36. Find the mean for the following frequency tables. a. Grade Frequency 49.5–59.5 2 59.5–69.5 3 69.5–79.5 8 79.5–89.5 12 89.5–99.5 5 Table 2.51 b. Daily Low Temperature Frequency 49.5–59.5 53 59.5–69.5 32
2.3 Measures of the Center of the Data
36. Find the mean for the following frequency tables.
a. Grade Frequency
49.5–59.5 2
59.5–69.5 3
69.5–79.5 8
79.5–89.5 12
89.5–99.5 5
Table 2.51
b. Daily Low Temperature Frequency
49.5–59.5 53
59.5–69.5 32
69.5–79.5 15
79.5–89.5 1
89.5–99.5 0
Table 2.52
c. Points per Game Frequency
49.5–59.5 14
59.5–69.5 32
69.5–79.5 15
79.5–89.5 23
89.5–99.5 2
Table 2.53
Use the following information to answer the next three exercises: The following data show the lengths of boats moored in a
marina. The data are ordered from smallest to largest: 16; 17; 19; 20; 20; 21; 23; 24; 25; 25; 25; 26; 26; 27; 27; 27; 28; 29;
30; 32; 33; 33; 34; 35; 37; 39; 40
Calculate the mean.
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