Exam 2: Descriptive Statistics: Tabulargraphical

A frequency distribution is a tabular summary of data showing the

The test scores of 14 individuals on their first statistics examination are shown below. 95 87 52 43 77 84 78 75 63 92 81 83 91 88 ​ Construct a stem-and-leaf display for these data.

The frequency distribution below was constructed from data collected on the quarts of soft drinks consumed per week by 20 students. Quarts of Soft Drink Frequency 0-3 4 4-7 5 8-11 6 12-15 3 16-19 2 ​ a. Construct a relative frequency distribution. b. Construct a cumulative frequency distribution. c. Construct a cumulative relative frequency distribution.

In a crosstabulation​

For the following observations, plot a scatter diagram and indicate what kind of relationship (if any) exists between x and y. 8 4 5 5 3 9 2 12 1 14

A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. Undergraduate Major Graduate School Business Engineering Others Total Yes 70 84 126 280 No 182 208 130 520 Total 252 292 256 800 Of those students who are planning on going to graduate school, what percentage are majoring in engineering?

The numbers of hours worked (per week) by 400 statistics students are shown below. Number of hours Frequency 0-9 20 10-19 80 20-29 200 30-39 100 The cumulative percent frequency for students working less than 20 hours per week is

The most common graphical presentation of quantitative data is a

A sample of 15 children shows their favorite restaurants: McDonalds Luppi's Mellow Mushroom Friday's McDonalds McDonalds Pizza Hut Taco Bell McDonalds Mellow Mushroom Luppi's Fizza Hut McDonalds Friday's McDonalds Which of the following distributions would be inappropriate for this data?

In a scatter diagram, a line that provides an approximation of the relationship between the variables is known as a

Data that indicate how much or how many are known as​

A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. Undergraduate Major Graduate School Business Engineering Others Total Yes 70 84 126 280 No 182 208 130 520 Total 252 292 256 800 The above crosstabulation shows

Which of the following graphical methods shows the relationship between two variables?

Forty shoppers were asked if they preferred the weight of a can of soup to be 6 ounces, 8 ounces, or 10 ounces.Below you are given their responses. 6 6 6 10 8 8 8 10 6 6 10 10 8 8 6 6 6 8 6 6 8 8 8 10 8 8 6 10 8 6 6 8 8 8 10 10 8 10 8 6 ​ a. Construct a frequency distribution and graphically represent the frequency distribution. b. Construct a relative frequency distribution and graphically represent the relative frequency distribution.

For stem-and-leaf displays where the leaf unit is not stated, the leaf unit is assumed to equal​

The sum of frequencies for all classes will always equal

A frequency distribution is

The sum of the percent frequencies for all classes will always equal

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

Below you are given the examination scores of 20 students. 52 99 92 86 84 63 72 76 95 88 92 58 65 79 80 90 75 74 56 99 ​ a. Construct a frequency distribution for this data. Let the first class be 50 - 59. b. Construct a cumulative frequency distribution. c. Construct a relative frequency distribution. d. Construct a cumulative relative frequency distribution.