1. The National Center for Health Statistics reports the following age breakdown of deaths in the United States during 2006. Source: The New York Times Almanac 2009, p. 392.
Age (Years) Number of Deaths (Thousands)
Construct a frequency distribution and a histogram for these data.
2. The accompanying data describe the hourly wage rates (dollars per hour) for 30 employees of an electron- ics firm:
|
under 15
|
39.80
|
22.66
|
24.39
|
17.31
|
21.02
|
21.61
|
20.97
|
18.58
|
16.61
|
|
15-under 25
|
34.23
|
19.74
|
21.57
|
20.56
|
22.16
|
20.16
|
18.97
|
22.64
|
19.62
|
|
25-under 35
|
41.93
|
22.05
|
22.03
|
17.09
|
24.60
|
23.82
|
17.80
|
16.28
|
19.34
|
|
35-under 45
|
84.79
|
22.22
|
19.49
|
22.27
|
18.20
|
19.29
|
20.43
|
|
|
45-under 55 183.53
55-under 65 275.30
65-under 75 398.36
75 or over 1389.83
Identify the following for the 45-under 55 class:
(a) frequency, (b) upper and lower limits, (c) width, and (d) midpoint.