Question

Use the two frequency tables to compare the life expectancy of men and women from 20 randomly selected countries. Include an overlayed frequency polygon (A.K.A.-line graph) and discuss the shapes of the distributions, the center, the spread, and any outliers. What can we conclude about the life expectancy of women compared to men?
Life Expectancy at Birth – Women Frequency
49–55 1
56–62 2
63–69 1
70–76 3
77–83 9
84–90 4
Table 2.47
Life Expectancy at Birth – Men Frequency
49–55 3
56–62 3
63–69 2
70–76 3
77–83 5
84–90 4

Answer 1

Answer:

conclusion : Life expectancy of women > Life expectancy of men

Step-by-step explanation:

A) Mean life expectancy of women

from the attached table

mean life expectancy of women = ∑fx / ∑f

∑fx = 1523

∑f = 20

mean = 1523 / 20 = 76.15

The line graph shows a negatively skewed distribution

B) Mean life expectancy of Men

from the attached table

mean life expectancy of Men = ∑fx / ∑f

∑fx = 1432

∑f = 20

mean = 1432 / 20 = 71.6

conclusion : Life expectancy of women > Life expectancy of men