# Question: The number of homes that a Realtor sells over a

The number of homes that a Realtor sells over a one-month period has the following probability distribution.

Number of Houses Sold ... Probability

0 ............ 0.30

1 ............. 0.50

2 .............. 0.15

3 .............. 0.05

a. On average, how many houses is the Realtor expected to sell over a one-month period?

b. What is the standard deviation of this probability distribution?

Number of Houses Sold ... Probability

0 ............ 0.30

1 ............. 0.50

2 .............. 0.15

3 .............. 0.05

a. On average, how many houses is the Realtor expected to sell over a one-month period?

b. What is the standard deviation of this probability distribution?

## Answer to relevant Questions

An analyst has developed the following probability distribution of the rate of return for a common stock.a. Calculate the expected rate of return. b. Calculate the variance and the standard deviation of this probability ...On average, 400 people a year are struck by lightning in the United States (The Boston Globe, July 21, 2008).a. What is the probability that at most 425 people are struck by lightning in a year?b. What is the probability ...Despite the fact that home prices seem affordable and mortgage rates are at historic lows, real estate agents say they are showing more homes, but not selling more (The Boston Globe, March 7, 2009). A real estate company ...A random variable X follows the continuous uniform distribution with a lower bound of -2 and an upper bound of 4. a. What is the height of the density function f (x)? b. What are the mean and the standard deviation of the ...Find the following probabilities based on the standard normal variable Z.a. P (ZPost your question