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Exhibit 2-5

Question 37
Multiple Choice

Exhibit 2-5.The following data represent scores on a pop quiz in a statistics section: img Refer to Exhibit 2-5.Suppose the data is grouped into five classes,and one of them will be "30 up to 44"-that is,{x;30 ≤ x < 44}.The relative frequency of this class is ____. A)0.20 B)0.25 C)4 D)5

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Q 38
Exhibit 2-6.The following data represent the recent sales price (in $1,000s)of 24 homes in a Midwestern city. Refer to Exhibit 2-6.Suppose the data on house prices will be grouped into five classes.The width of the classes for a frequency distribution or histogram is closest to ______. A)15 B)20 C)25 D)30
Q 39
Exhibit 2-6.The following data represent the recent sales price (in $1,000s)of 24 homes in a Midwestern city. Refer to Exhibit 2-6.Suppose the data is grouped into five classes,and one of them will be "115 up to 140"- that is,{x;115 ≤ x < 140}.The relative frequency of this class is _____. A)6/24 B)7/24 C)6 D)7
Q 40
Exhibit 2-6.The following data represent the recent sales price (in $1,000s)of 24 homes in a Midwestern city. Refer to Exhibit 2-6.Suppose the data is grouped into five classes,and one of them will be "165 up to 190"- that is,{x;165 ≤ x < 190}.The frequency of this class is ____. A)6/24 B)7/24 C)6 D)7
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