Compute the expected age ? of a British nurse in 1851. Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Round your answer to nearest hundredth.
Age range (yr)20-29
30-39
40-49
50-59
60-69
70-79
80+
Midpoint (x)24.5
34.5
44.5
54.5
64.5
75.5
84.5
Percent of nurses5.8%
9.8%
19.4%
29.1%
25.1%
9.1%
1.7%
A. 54.50
B. 59.50
C. 53.76
D. 53.79
E. 43.79
Answer: D
Mathematics
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