Question

1. The sales records of a real estate ag os tecords of a real estate agency show the following swing sales over the past 200 days: Number of Houses Sold Number of Days a. b. How many sample points are there? Assion mobabil Assign probabilities to the sample points and show their values. at is the probability that the agency will not sell any houses in a given day? What is the probability of selling at least 2 house What is the probability of selline 1 or 2 houses! What is the probability of selling less than 3 houses e. 1.

Answer 1

Number of Number of Houses sold . Days o 60 N M 2 200 a) No. of Bowmple poinb. = 5. (0,1,2,3,4). b) Sample points Number of Days. probabili her 200 -0.4 Ko 02 ..2 200 - - 0.08 206 0.02 200 0.02 c) The probability that the agency will not sale any houses in a given day is 60 = 0.3. d) The probability of selling alleast two houses is 40 16 4 to the top - 0.24 0.084 092 - 0.2+0.08 +0.02 = 0.34 200 200

e) The probability of selling one of two houses = probability of selling one house of probability of selling two houses 0 - 0.4 + 0.2 = 0.6 200 f) The probability of selling less than three houses, is 60 + 80 + 400 200 200 = 0.3 + 0.4 + 0-2 = 0.91
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