1.Thirty students recorded the colors of their eyes, choosing from the colors brown, blue, green, hazel, and black. This data can be appropriately summarized in a
A) Open-ended distribution C) Grouped frequency distribution
B) Categorical frequency distribution D) Upper boundary
2. A Pareto chart does not have which of the following properties?
A) It is a bar chart
B) The frequencies are arranged from highest to lowest
C) The frequencies are arranged from lowest to highest
D) It is used to represent categorical data
3. A time series graph is useful for which of the following purposes?
A) Representing relative frequencies of categories in a specific year
B) Representing the cumulative frequencies of the data in a specific year
C) Representing the frequencies of the data, sorted from largest to smallest
D) Representing the frequencies of a data category over a period of several years
4. The graphs that have their distributions as proportions instead of raw data as frequencies are called
A) relative frequency graphs. C) histograms.
B) ogive graphs. D) frequency polygons.
5. What are the boundaries of the class 1.87–3.43?
A) 1.9–3.4 B) 1.87–3.43 C) 1.879–3.439 D) 1.865–3.435
6. An automobile dealer wants to construct a pie graph to represent types of cars sold in July. He sold 72 cars; 16 of which were convertibles. The convertibles will represent how many degrees in the circle?
A) 60° B) 80° C) 100° D) 50°
7. A scatter plot would be useful for
A) Showing the relative number of sales of four different brands of blank DVDs
B) Showing the trend of sales, over time, of five different brands of blank DVDs
C) Showing the relationship between the sales of blank CDs and blank DVDs
D) Showing the top selling brands of blank DVDs
8. Exaggerating a one-dimensional increase by showing it in two dimensions is an example of a(n)
A) pictograph. B) pie graph. C) ogive. D) misleading graph.
9. A weatherman records the amount of rain that has fallen in Portland, Oregon during each day. What type of graph should he use?
A) pie graph B) pictograph C) time series graph D) ogive
10. In a pie graph, if pepperoni pizza were 24/72 of the distribution, how many degrees would be needed to represent pepperoni?
A) 90° B) 120° C) 60° D) 150°
11. Karen is constructing a pie graph to represent the number of hours her classmates do homework each day. She found that 8/24 did homework for three hours each day. In her pie graph, this would represent how many degrees?
A) 135° B) 45° C) 120° D) 240°
12. What is the midpoint of the class 1-17?
A) 1 B) 9 C) 1 and 17 D) 9 and 16