80) A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows.

293036414550576128503658 603836474032584661405532 61564546623638405027

Construct a frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25.Find the relative frequency for the 2ndclass. (Round answer to the nearest hundredth and then convert your result into a percent)

81) A car insurance company conducted a survey to find out how many car accidents people had been involved in. They selected a sample of 32 adults between the ages of 30 and 70 and asked each person how many accidents they had been involved in in the past ten years. The following data were obtained.

0, 1, 0, 3, 2, 1, 0, 2, 1, 1, 1, 0, 2, 0, 4, 1, 2, 0, 0, 1, 0, 2, 1, 3, 1, 3, 0, 0, 1, 0, 5, 4

Construct a frequency distribution using classes based on a single value.Find the relative frequency for the 5thclass. (Round answer to nearest hundredth and then convert your result into a percent)

82) Construct a stem and leaf plot. The numbers below represent the commute times (in minutes) for a group of college students.

11, 16, 12, 16, 13, 25, 26, 35, 2, 12, 23, 12,16, 34, 21,4, 7, 24, 23, 34

86) Find the mode(s) ofthe data points below. If there are multiple modes, list them in ascending order using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

$54,410, $51, 991, $51,730, $51,300, $51,196,$51,190, $51,122, $51,196, $51,037, $50, 875

87) Find the mean of thedata points below.(Round to the nearest tenth)

$54,410, $51, 991, $51,730, $51,300, $51,196,$51,190, $51,122, $51,196, $51,037, $50, 875

88) Find the standard deviation of the data points below.(Round to the nearest thousandth)

$54,410, $51, 991, $51,730, $51,300, $51,196,$51,190, $51,122, $51,196, $51,037, $50, 875

89) Find the mode(s) of the data points below. If there are multiple modes, list them in ascending order no exceptions using a comma. (Do not place any unnecessary spaces in your answer) If no mode exists, state that (no mode).

78, 81, 95, 73, 69, 79,

92, 73, 90, 97, 88, 93,

70, 85, 86, 78, 69, 80

90) Find the mode(s)of the data points below. If there multiple modes, list them in ascending order no exceptions using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

332, 302, 235, 100, 90, 88, 84, 75, 67

91) Find the mean ofthe data points below.(Round your answer to the nearestten-thousandth)

332, 302, 235, 100, 90, 88, 84, 75, 67

92) Find the standard deviationofthe data points below.(Round your answer to the nearestten-thousandth)

332, 302, 235, 100, 90, 88, 84, 75, 67

93) Find the variance ofthe data points below.(Round your answer to the nearest hundredth)

332, 302, 235, 100, 90, 88, 84, 75, 67

94) Find the mean ofthe data points below.(Round your answer to the nearest hundredth)

11,3,0,-2,3,-2,-2, 5,-2,7,2,4,1,8,1,0,-5,2

95) Find the standard deviationofthe data points below.(Round your answer to the nearest thousandth)

11,3,0,-2,3,-2,-2, 5,-2,7,2,4,1,8,1,0,-5,2

96) Find the mode(s)of the data points below. If there multiple modes, list them in ascending order no exceptions using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

11,3,0,-2,3,-2,-2, 5,-2,7,2,4,1,8,1,0,-5,2

97) Find the percentile the given data point below is located in from the given data vales.(Round answer to the next whole number)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245

250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

Data point 213.

98) Find the percentile the given data point below is located in from the given data vales.(Round answer to the nearest tenth)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245

250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

Data point 260.

99) Find the indicated percentile orquartile forthe given data values.(Round answer to the nearest tenth when necessary)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245

250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

FindP60.

100) Find the indicated percentile orquartile forthe given data values.(Round answer to the nearest tenth when necessary)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245

250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

FindQ3.