Question 1

Calculate the third quartile.

Accepted Answer

A)  26 
B)  31 
C)  25 
D)  27 
A)  26 
B)  31 
C)  25 
D)  27

Question 2

If M is the mean of x1, x2, and x3, then the mean of 50x1, 50x2, and 50x3 is 50M.

Accepted Answer

A) True 
 B)False

Question 3

Consider the data
6 4 8 4 3
concerning the number of visits by five students to a fast food establishment in the last 30 days,
Calculate the
(a) sample mean
(b) deviations x - x and check to see that they add up to 0.
(c) sample variance. Give the units of variance.
(d) sample standard deviation.

Accepted Answer

(a) 5 
(b)

Question 4

If the median of the following set of data is 11.1, find the value of x.
12.9 $~~~ ~$8.4 x 10.6

Accepted Answer

A)  10.6 
B)  11.1 
C)  11.6 
D)  Cannot be determined 
A)  10.6 
B)  11.1 
C)  11.6 
D)  Cannot be determined

Question 5

The main types of data are qualitative and numerical.

Accepted Answer

A) True 
 B)False

Question 6

During a recent season, the Orlando Magics basketball team won 59 games. The diference in points for 24 of these games is shown below. Find the time plot that corresponds to these data.

Accepted Answer

The answer of During a recent season, the Orlando Magics...

Question 7

A frequency table for a sample of units

Accepted Answer

A)  shows all sample units 
B)  shows the counts of individual categories 
C)  shows all units within a category 
D)  shows the relative frequencies of each category 
A)  shows all sample units 
B)  shows the counts of individual categories 
C)  shows all units within a category 
D)  shows the relative frequencies of each category

Question 8

Calculate the mean and median of the following data set.

Accepted Answer

The answer of Calculate the mean and median of the...

Question 9

The second quartile of a data set always corresponds to the mean.

Accepted Answer

A) True 
 B)False

Question 10

The range is the difference between the largest observation and the smallest observation.

Accepted Answer

A) True 
 B)False

Question 11

The measurement scale for a ______ variable does not have gaps.

Accepted Answer

The answer of The measurement scale for a ______ variable...

Question 12

The number of bachelor's degrees earned in the United States, over
 a recent 20-year period are given in the following table. The number is
 presented in millions of degrees.
   Select the time plot of the number of bachelor's degrees.

Accepted Answer

The answer of The number of bachelor's degrees earned in...

Question 13

Find the 10th percentile.

Accepted Answer

A)  1.7 
B)  1.8 
C)  1.72 
D)  1.75 
A)  1.7 
B)  1.8 
C)  1.72 
D)  1.75

Calculate the third quartile.

If M is the mean of x₁, x₂, and x₃, then the mean of 50x₁, 50x₂, and 50x₃ is 50M.

Consider the data 6 4 8 4 3 concerning the number of visits by five students to a fast food establishment in the last 30 days, Calculate the (a) sample mean (b) deviations x - x and check to see that they add up to 0. (c) sample variance. Give the units of variance. (d) sample standard deviation.

If the median of the following set of data is 11.1, find the value of x. 12.9 $~~~ ~$ 8.4 x 10.6

The main types of data are qualitative and numerical.

During a recent season, the Orlando Magics basketball team won 59 games. The diference in points for 24 of these games is shown below. Find the time plot that corresponds to these data.

A frequency table for a sample of units

Calculate the mean and median of the following data set.

The second quartile of a data set always corresponds to the mean.

The range is the difference between the largest observation and the smallest observation.

The measurement scale for a ______ variable does not have gaps.

The number of bachelor's degrees earned in the United States, over a recent 20-year period are given in the following table. The number is presented in millions of degrees. Select the time plot of the number of bachelor's degrees.

Find the 10th percentile.

Introduction to Statistics

Descriptive Study of Bivariate Data

Probability

Probability Distributions

The Normal Distribution

Variation in Repeated Samplessampling Distributions

Drawing Inferences From Large Samples

Small Sample Inferences for Normal Populations

Comparing Two Treatments

Regression Analysis I

Regression Analysis II Multiple Linear Regression and Other Topics

Analysis of Categorical Data

Analysis of Variance Anova

Nonparametric Inference

Filters

Exam 2: Organization and Description of Data

Calculate the third quartile.

If M is the mean of x1, x2, and x3, then the mean of 50x1, 50x2, and 50x3 is 50M.

Consider the data 6 4 8 4 3 concerning the number of visits by five students to a fast food establishment in the last 30 days, Calculate the (a) sample mean (b) deviations x - x and check to see that they add up to 0. (c) sample variance. Give the units of variance. (d) sample standard deviation.

If the median of the following set of data is 11.1, find the value of x. 12.9 ~~~ ~ 8.4 x 10.6

The main types of data are qualitative and numerical.

During a recent season, the Orlando Magics basketball team won 59 games. The diference in points for 24 of these games is shown below. Find the time plot that corresponds to these data.

A frequency table for a sample of units

Calculate the mean and median of the following data set.

The second quartile of a data set always corresponds to the mean.

The range is the difference between the largest observation and the smallest observation.

The measurement scale for a ______ variable does not have gaps.

The number of bachelor's degrees earned in the United States, over a recent 20-year period are given in the following table. The number is presented in millions of degrees. Select the time plot of the number of bachelor's degrees.

Find the 10th percentile.

Introduction to Statistics

Descriptive Study of Bivariate Data

Probability

Probability Distributions

The Normal Distribution

Variation in Repeated Samplessampling Distributions

Drawing Inferences From Large Samples

Small Sample Inferences for Normal Populations

Comparing Two Treatments

Regression Analysis I

Regression Analysis II Multiple Linear Regression and Other Topics

Analysis of Categorical Data

Analysis of Variance Anova

Nonparametric Inference

Filters

If M is the mean of x₁, x₂, and x₃, then the mean of 50x₁, 50x₂, and 50x₃ is 50M.

If the median of the following set of data is 11.1, find the value of x. 12.9 $~~~ ~$ 8.4 x 10.6