Probability and Statistics Worksheet 12

Answer Key

 1 The number of accesses to a web page on the seven days of the week is 190, 200, 130, 210, 200, 198, 200. Find the following:   a.    Mean: 189.71   b.    Median: 200   c.    Mode: 200 2 The expenditures of Justin in first five months of an year are \$1000, \$1200, \$1000, \$1100, \$1150. Find the following:   a.    Mean: \$1090   b.    Median: \$1100   c.    Mode: \$1000 3 Andrew sells stamps and earns as revenue on each day of a particular week as follows: \$31, \$44, \$47, \$50, \$21, \$31, \$31. Find the following:                                    a.    Mean: \$36.43   b.    Median: \$31   c.    Mode: \$31 4 The prices of air conditioners of different brands are \$130, \$200, \$140, \$130, \$130, \$155, \$165, \$200, \$110. Find the following:   a.    Mean: \$151.11   b.    Median: \$140   c.    Mode: \$130 5 Adams runs different distances every morning. He runs (in km) from Monday to Friday 2, 2, 2.5, 3.4, 1.9, respectively. Find the following: a.    Mean: 2.36   b.    Median: 2   c.    Mode: 2

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