## he point estimate of the sample ________

241.The point estimate of the sample _______________ is the positive square root of the sample

variance.

________________________________________

242.The ____________________ is a quantity that measures the variation of a population or sample relative

to its mean.

________________________________________

243.A(n) ___________ is a graphical display of categorical data made up of vertical or horizontal bars.

________________________________________

244.What percent of a normal population is within 2 standard deviations of the mean?

245.Twenty students were randomly selected from a business statistics course and were asked to report the

number of times that they had eaten a meal at the university's cafeteria within the past month. Below

are the values reported: 7, 8, 10, 11, 8, 6, 10, 9, 9, 8, 13, 12, 8, 11, 11, 14, 8, 7, 10, 12. What is the 90th

percentile?

246.Compute the mean of the data 32,33,22,28,24,23,27,24,27,21.

247.Compute the median of the data 32,33,22,28,24,23,27,24,27,21.

248.Compute the mode of the data 32,33,22,28,24,23,27,24,27,21.

249.Compute the range of the data: 16,18,23,21,17,16,24,23,9,17,11,16,13,10,15,14.

250.Compute the population variance of the data: 16,18,23,21,17,16,24,23,9,17,11,16,22,10,15,14.

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