Tuesday

October 21, 2014

October 21, 2014

Posted by **Kimberly** on Friday, November 20, 2009 at 10:08pm.

Find the probability that a shopper who was happy with the service had made a purchase (round the answer to the nearest hundredth).

What can you conclude?

About what percent of those who were happy with the service made a purchase?

- Math -
**Reiny**, Friday, November 20, 2009 at 11:26pmthe transition matrix would be

..... : happy not happy

....buy 125/236 111/236

not buy 148/464 316/464 or

│.53 .47 │

│.32 .68 │

so [a b] x [transition matrix] = [a b]

where a+b= 1

I got .53a + .32b = a or 32b = 47a

and .47a + .68b = b

we only need the first of these relations and the fact that a+b = 1

then a = 1-b

and 32b = 47a

32b = 47(1-b)

32b = 47 - 47b

79b = 47

b = .595 then a = .405

(This is the first time I have seen this kind of question in this forum, and its been over 12 years since I have done one like it. So I am not 100% sure of my work here)

**Answer this Question**

**Related Questions**

statistic - A survey was made of 100 customers in a department store. 70 of the ...

math - Q1.A cooperative store is interested in knowing whether there is any ...

statistics - 3 In 1999, a sample of 200 in-store shoppers showed that 42 paid by...

statistics - An employer polled its employers to see if they agree with the ...

stats - Usin7) An employer polled its employers to see if they agree with the ...

Exercice - The Stop N’ Go convenience chain recently selected a random sample ...

statistics - If a major Internet store wants to estimate the percentage of adult...

statistics - A sample of 275 shoppers at a large suburban mall were asked two ...

math - Nick has a revolving department store credit card account with an annual ...

Math - A mall has three department stores, J C Penney, Macy’s, and Sears. A ...