Question Details

81. The following is a relative frequency distribution of grades in an introductory statistics course.
  
If this was the distribution of 200 students, give the frequency distribution for this data: 

82. The following is a relative frequency distribution of grades in an introductory statistics course.
  
Construct a percent frequency bar chart for this data. 

83. The following is a relative frequency distribution of grades in an introductory statistics course.
  
If we wish to depict these data using a pie chart, find how many degrees (out of 360 degrees) should be assigned to each grade. 

84. Fill in the missing components of the following frequency distribution constructed for a sample size of 50.
   

85. Recently an advertising company called 200 people and asked to identify the company that was in an ad running nationwide. The following results were obtained:
  
Construct a table of row percentages 

86. Recently an advertising company called 200 people and asked to identify the company that was in an ad running nationwide. The following results were obtained:
  
Construct a table of column percentages 

87. The local electronics retailer has recently conducted a study on purchasers of large screen televisions. The study recorded the type of television and the credit account balance of the customer at the time of purchase. The following results were obtained:
  
Construct a table of row percentages. 

88. The local electronics retailer has recently conducted a study on purchasers of large screen televisions. The study recorded the type of television and the credit account balance of the customer at the time of purchase. The following results were obtained:
  
Construct a table of column percentages. 

89. Math test anxiety can be found throughout the general population. A study of 116 seniors at a local high school was conducted. The following table was produced from the data. Complete the missing parts.
   

90. The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below:
24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50
Construct a histogram 

91. The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below: 24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50
Construct a stem-and-leaf plot.