Question

Listed below are prices in dollars for one night at different hotels in a certain region. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. How useful are the measures of variation for someone searching for a room?

99 285 239 118 271 222 230 233

The range of the sample data is 186 dollars

What is the variant of the sample data?

What is the standard deviation of the sample data?

Answer #1

Here from the given values min = 99, max = 285

then range = max - min = 285 - 99 = 186

to find the variance and standard deviation we have to find the mean

then find the sum of squared deviations from the mean

then by formula find the variance and standard deviation

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