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Chapter 2: Q. 50 (page 134)

Use the following information to answer the next three exercises: State whether the data are symmetrical, skewed to the left, or skewed to the right.

16;17;19;22;22;22;22;22;23

Short Answer

Expert verified

The data is skewed to the right.

Step by step solution

01

Given information 

The data given is:

16;17;19;22;22;22;22;22;23

02

Explanation 

The plot of the data is

Since the data has the highest frequency at 22which is the right side of the graph. Also, the beside bars are less than the highest bar. We can say the graph is skewed to the right.

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Most popular questions from this chapter

The number of books checked out from the library from 25students are as follows:

0;0;0;1;2;3;3;4;4;5;5;7;7;7;7;8;8;8;9;10;10;11;11;12;12

Find the mode.

Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976鈥�1977 through 2004鈥�2005.

鈥� 渭 = 1000 FTES

鈥� median = 1,014 FTES

鈥� 蟽 = 474 FTES

鈥� first quartile = 528.5 FTES

鈥� third quartile = 1,447.5 FTES

鈥� n = 29 years

75% of all years have an FTES:

a. at or below: _____

b. at or above: _____

Use the following information to answer the next two exercises. Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars.

Looking at your box plot, does it appear that the data are concentrated together, spread out evenly, or concentrated in some areas, but not in others? How can you tell?

The following data set shows the heights in inches for the boys in a class of 40students.

66;66;67;67;68;68;68;68;68;69;69;69;70;71;72;72;72;73;73;74

The following data set shows the heights in inches for the girls in a class of 40students.

61;61;62;62;63;63;63;65;65;65;66;66;66;67;68;68;68;69;69;69

Construct a box plot using a graphing calculator for each data set, and state which box plot has the wider spread for the middle 50%of the data.

When the data are skewed left, what is the typical relationship between the mean and median?
See all solutions

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