Information about mean-variance-standard deviation

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Reference no: EM1391600

The sales records for a real estate company are given. From the sample data, the following frequency distribution has been developed.

Sale Price (1000's) Number of Houses Sold (frequency)

20-39 1

40-59 2

60-79 4

80-99 2

100-119 1

Compute the mean, variance and standard deviation for the grouped data. Based on the previous answer, how much could the realtor expect to make if he sells 3 houses?

Reference no: EM1391600

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