After successful new product introduction Elaine decided to establish two muffin top mobile stands to create higher product exposure to potential customers in other areas. After some time, she conducted a market survey, which asked 300 randomly selected people about the frequency of their muffin top purchases from those mobile stands. Survey results are shown in the table below:
| purchase frequency |
mobile stand 1 (B1 |
mobile stand 2 B2 |
totals: |
|---|---|---|---|
| frequency A1 | 81 | 63 | 144 |
| Rarely A2 | 48 | 42 | 90 |
| Never A3 | 36 | 30 | 66 |
| totals: | 165 | 135 | 300 |
A. What is the probability of randomly selecting a person, who frequently buys muffin tops at the mobile stand 2?
B. What is the probability of randomly selecting a person, who never buys muffin tops at the mobile stand 1?
a) P(Frequently and Mobile stand 2) = 63/300 = 0.210
b) P(Never and Mobile stand 1) = 36/300 = 0.120
After successful new product introduction Elaine decided to establish two muffin top mobile stands to create...