Age range(yr)| 20-29 30-39 40-49 50-59 60-69 70-79 80+
Midpoint | 24.5 34.5 44.5 54.5 64.5 74.5 84.5
Percent of | 5.7 9.7 19.5 29.2 25.0 9.1 1.8
a) Using the age midpoints x and the percentages of of nurses, do we have a valid probability distribution? Explain.
b) Use a histogram to graph the probability distribution of part (a).
c) Find the probability that a British nurse selected at random in 1851 would be 60 years of age or older.
d) Compute the expected age u of a British nurse contemporary to Florence Nightingale.
e) Compute the standard deviation o for ages of nurses shown in the distribution.
A Complete, Neat and Step-by-step Solution is provided in the attached Excel file.