ModelingSpreadofData_worksheet

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DHA Suffa University, Karachi *

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INORGANIC

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Statistics

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Nov 24, 2024

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pdf

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Name: ___________________________ Continue on the following page. Directions: Graph the following linear inequalities. 1. Answer questions ( a – e ) for the following set of data. 3, 9, 10, 5, 8, 5, 9, 11, 10, 3, 10 a. Find the mean of the data. b. Find the median of the data. c. Find the mode of the data. d. Find the range of the data. Modeling Spread of Data e. Find the standard deviation of the data.

Continue on the following page. 2. Answer questions ( a – d ) for the following three data sets. A = {3, 5, 7, 9, 11, 12, 12} B = {1, 2, 2, 5, 5, 9, 13} C = {2, 5, 8, 9, 12, 13, 17} a. Find the mean of each data set. b. Find the standard deviation of each data set. c. Identify the data set with the largest and smallest standard deviation. d. Explain what the standard deviations say about the data sets.

Continue on the following page. 3. You have a statistics project due in your math class. As part of the project for one hour you count how many shoppers at your favorite store are between the ages of 21 and 25. Your frequency table is below. Use this table to answer questions ( a – c ). Ages 21 22 23 24 25 Frequency 2 5 3 7 10 a. Find the mean of the data. b. Find the standard deviation of the data. c. Explain what the mean and standard deviation tell you about the data you collected.

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