I just wanted to check if I got these right for my homework.
The following data represents, in thousands, the type of health insurance coverage of people by age in the year 2008
<18 yrs old -- 18-44 yrs old -- 45-66 yrs old -- >64 yrs old --- Row totals
Private Health Insurance 49,473 79,294 52,550 20,685 202,002
Gov't Health Insurance 19,662 11,992 9,227 32,813 73,694
No Health Ins 8,351 25,678 9,106 2,553 45,688
Column Totals 77,486 113,964 70,883 56,051 321,384
1) What is the probability a randomly selected ind. has no health ins?
45,688/321,684
2) What is the prob that a randomly selected ind. has no health ins. or is 18-44 yrs old?
116,964+45,688/321,684
3) If one individual who is less than 18 yrs old is randomly selected, what is the prob. that ind. has private health insurance?
49,473/202,002
4) If one ind. with private health ins. is randomly selected, what is the prob. that the ind. is less than 18 yrs old?
49,473/77,486
The following data represents, in thousands, the type of health insurance coverage of people by age in the year 2008
<18 yrs old -- 18-44 yrs old -- 45-66 yrs old -- >64 yrs old --- Row totals
Private Health Insurance 49,473 79,294 52,550 20,685 202,002
Gov't Health Insurance 19,662 11,992 9,227 32,813 73,694
No Health Ins 8,351 25,678 9,106 2,553 45,688
Column Totals 77,486 113,964 70,883 56,051 321,384
1) What is the probability a randomly selected ind. has no health ins?
45,688/321,684
2) What is the prob that a randomly selected ind. has no health ins. or is 18-44 yrs old?
116,964+45,688/321,684
3) If one individual who is less than 18 yrs old is randomly selected, what is the prob. that ind. has private health insurance?
49,473/202,002
4) If one ind. with private health ins. is randomly selected, what is the prob. that the ind. is less than 18 yrs old?
49,473/77,486