In: Statistics and Probability
The table to the right shows the number of people, in thousands, in a country without health insurance in a certain year. Complete parts a) through d) below. |
Insured |
Uninsured |
|||
---|---|---|---|---|---|
Under 18 years |
67 comma 02567,025 |
7 comma 4337,433 |
|||
18 to 24 years |
21 comma 08721,087 |
8 comma 8648,864 |
|||
25 to 34 years |
29 comma 33729,337 |
11 comma 25711,257 |
|||
35 to 44 years |
31 comma 77831,778 |
8 comma 2798,279 |
|||
45 to 64 years |
67 comma 06267,062 |
13 comma 46513,465 |
|||
65 years and older |
38 comma 83538,835 |
755755 |
a) What percentage of the countries' population in the year did not have health insurance and was between the ages of 18 to 24 years?
nothing %
(Round to two decimal places as needed.)
Solution:
We are given following table shows the number of people, in thousands, in a country without health insurance in a certain year.
Insured | Uninsured | Row Totals | |
Under 18 years | 67,025 | 7,433 | 74,458 |
18 to 24 years | 21,087 | 8,864 | 29,951 |
25 to 34 years | 29,337 | 11,257 | 40,594 |
35 to 44 years | 31,778 | 8,279 | 40,057 |
45 to 64 years | 67,062 | 13,465 | 80,527 |
65 years and older | 38,835 | 755 | 39,590 |
Column Totals | 2,55,124 | 50,053 | N = 3,05,177 |
Part a) We have to find the percentage of the countries' population in the year did not have health insurance and was between the ages of 18 to 24 years
Let A = countries' population in the year did not have health insurance
and B = countries' population is between the ages of 18 to 24 years
Thus we have to find:
P( A and B) = ..........?
From the table we have :
n(A and B) =Number of people in the year did not have health insurance and are between the ages of 18 to 24 years = 8,864
and
N = Total population = 3,05,177
Thus
That is: the percentage of the countries' population in the year did not have health insurance and was between the ages of 18 to 24 years is 2.90%