The sales records of a real estate agency show the following sales over the past 200 days:
Number of
Number
Houses Sold
of Days
0
60
1
80
2
40
3
16
4
4
?
a.How many sample points are there?b.Assign probabilities to the sample points and show their values.c.What is the probability that the agency will not sell any houses in a given day?d.What is the probability of selling at least 2 houses?e.What is the probability of selling 1 or 2 houses?f.What is the probability of selling less than 3 houses?
What will be an ideal response?
| a. | 5 | ||
| b. | Number of | ||
| Houses Sold | Probability | ||
| 0 | 0.30 | ||
| 1 | 0.40 | ||
| 2 | 0.20 | ||
| 3 | 0.08 | ||
| 4 | 0.02 | ||
| c. | 0.3 | ||
| d. | 0.3 | ||
| e. | 0.6 | ||
| f. | 0.9 | ||
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