Question 1

The top number of goals scored by a national team in 18 FIFA's World Cups is shown below. Select the dot diagram that matches with the data.

Accepted Answer

II

Question 2

Find the standard deviation of the following data set.

Accepted Answer

A)  56.0 
B)  57.0 
C)  49.5 
D)  48.5 
A)  56.0 
B)  57.0 
C)  49.5 
D)  48.5 A

Question 3

Consider the software summary of the data on the length of a wolf's Canine(mm).

n = 19
sd(x) = 1.969
   
(a) sample range
(b) sample interquartile range.
(c) $( \bar{x} - 2s , \bar{x} - 2s )$

Accepted Answer

(a) 8.3 
(b) 2.00 
(c) (23.95 , 31.83)

Question 4

Find the variance of the following data set.

Accepted Answer

A)  1.4 
B)  2.0 
C)  1.7 
D)  3.0 
A)  1.4 
B)  2.0 
C)  1.7 
D)  3.0

Question 5

A report on the points gained by football teams playing at home in week 2 of the season are summarized below.
   
a) Calculate the sample variance.
b) Calculate the interquartile range.

Accepted Answer

The answer of A report on the points gained by...

Question 6

If M is the mean of x1, x2, and x3, then the mean of x1 + 3, x2 + 3, and x3 + 3 is M + 3.

Accepted Answer

A) True 
 B)False

Question 7

A football fan recorded the total number of points scored by 5 teams during week 1.
   
a) Calculate the sample variance.
b) Calculate the sample standard deviation.

Accepted Answer

a) s² = 72.

Question 8

In a recent basketball season, one-star player scored 475 field goals, 4 3-point field goals, and 292 free-throw goals. Find the pie chart that better describes the data.

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 9

Find the histogram that better describes the data.

Accepted Answer

The answer of Find the histogram that better describes the...

Question 10

Five students reported the number of canned/bottled beverages they consumed last week
3 7 3 11 1
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 and

Question 11

Refer to the data.
   
a) Calculate $\bar{X}$ and s.
b) Find the proportion of the observations that are in the intervals $\bar{X}±s$, $\bar{X}±2s$ , and $\bar{X}±3s$ .

Accepted Answer

a)
 @#IMG-DLM& 
b) 13/20 = 0.6

Question 12

The following data represents the Tampa Buccaneers number of touchdowns per season, in 20 seasons. Make a stem-and-leaf display.

Accepted Answer

The answer of The following data represents the Tampa Buccaneers...

Question 13

For the data concerning the number of chemistry class discussion sections skipped by 5 students last semester.
1 3 4 9 3
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) 4 and

Question 14

The table below shows the attendance to the Super Bowl for 14 years
   
a) Find the 10th percentile.
b) Find the interquartile range.

Accepted Answer

The answer of The table below shows the attendance to...

Question 15

Both, categorical and numerical data can be described graphically using tables and ______.

Accepted Answer

The answer of Both, categorical and numerical data can be...

Question 16

For the data set 6 10 1
a) Calculate the deviations (X-X̄) . Round your answers to two decimal places.
b) Calculate the sample variance and the standard deviation.

Accepted Answer

a) 0.33, 4.33, and -

Question 17

During a recent regular season, the Orlando magics basketball team won 59 games. The difference of points in 24 of these games is shown below. Find the control chart that corresponds to these data.
   I
   II

Accepted Answer

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

Question 18

Calculate the mean and median of the following data set. Round your answer to the nearest tenth.

Accepted Answer

A)  36.7 and 30, respectively 
B)  36.7 and 32, respectively 
C)  36.7 and 31, respectively 
D)  Mean: 36.7; there is no median 
A)  36.7 and 30, respectively 
B)  36.7 and 32, respectively 
C)  36.7 and 31, respectively 
D)  Mean: 36.7; there is no median

Question 19

In describing a data set of measurements, the computation of numerical measures is irrelevant.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) True 
 B)False

The top number of goals scored by a national team in 18 FIFA's World Cups is shown below. Select the dot diagram that matches with the data.

Find the standard deviation of the following data set.

Find the variance of the following data set.

A report on the points gained by football teams playing at home in week 2 of the season are summarized below. a) Calculate the sample variance. b) Calculate the interquartile range.

If M is the mean of x₁, x₂, and x₃, then the mean of x₁ + 3, x₂ + 3, and x₃ + 3 is M + 3.

A football fan recorded the total number of points scored by 5 teams during week 1. a) Calculate the sample variance. b) Calculate the sample standard deviation.

In a recent basketball season, one-star player scored 475 field goals, 4 3-point field goals, and 292 free-throw goals. Find the pie chart that better describes the data.

Find the histogram that better describes the data.

Five students reported the number of canned/bottled beverages they consumed last week 3 7 3 11 1 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.

The following data represents the Tampa Buccaneers number of touchdowns per season, in 20 seasons. Make a stem-and-leaf display.

For the data concerning the number of chemistry class discussion sections skipped by 5 students last semester. 1 3 4 9 3 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.

The table below shows the attendance to the Super Bowl for 14 years a) Find the 10th percentile. b) Find the interquartile range.

Both, categorical and numerical data can be described graphically using tables and ______.

For the data set 6 10 1 a) Calculate the deviations (X-X̄) . Round your answers to two decimal places. b) Calculate the sample variance and the standard deviation.

During a recent regular season, the Orlando magics basketball team won 59 games. The difference of points in 24 of these games is shown below. Find the control chart that corresponds to these data. I II

Calculate the mean and median of the following data set. Round your answer to the nearest tenth.

In describing a data set of measurements, the computation of numerical measures is irrelevant.

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

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

The top number of goals scored by a national team in 18 FIFA's World Cups is shown below. Select the dot diagram that matches with the data.

Find the standard deviation of the following data set.

Consider the software summary of the data on the length of a wolf's Canine(mm). n = 19 sd(x) = 1.969 (a) sample range (b) sample interquartile range. (c) (xˉ−2s,xˉ−2s)( \bar{x} - 2s , \bar{x} - 2s )(xˉ−2s,xˉ−2s)

Find the variance of the following data set.

A report on the points gained by football teams playing at home in week 2 of the season are summarized below. a) Calculate the sample variance. b) Calculate the interquartile range.

If M is the mean of x1, x2, and x3, then the mean of x1 + 3, x2 + 3, and x3 + 3 is M + 3.

A football fan recorded the total number of points scored by 5 teams during week 1. a) Calculate the sample variance. b) Calculate the sample standard deviation.

In a recent basketball season, one-star player scored 475 field goals, 4 3-point field goals, and 292 free-throw goals. Find the pie chart that better describes the data.

Find the histogram that better describes the data.

Five students reported the number of canned/bottled beverages they consumed last week 3 7 3 11 1 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.

Refer to the data. a) Calculate Xˉ\bar{X}Xˉ and s. b) Find the proportion of the observations that are in the intervals Xˉ±s\bar{X}±sXˉ±s , Xˉ±2s\bar{X}±2sXˉ±2s , and Xˉ±3s\bar{X}±3sXˉ±3s .

The following data represents the Tampa Buccaneers number of touchdowns per season, in 20 seasons. Make a stem-and-leaf display.

For the data concerning the number of chemistry class discussion sections skipped by 5 students last semester. 1 3 4 9 3 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.

The table below shows the attendance to the Super Bowl for 14 years a) Find the 10th percentile. b) Find the interquartile range.

Both, categorical and numerical data can be described graphically using tables and ______.

For the data set 6 10 1 a) Calculate the deviations (X-X̄) . Round your answers to two decimal places. b) Calculate the sample variance and the standard deviation.

During a recent regular season, the Orlando magics basketball team won 59 games. The difference of points in 24 of these games is shown below. Find the control chart that corresponds to these data. I II

Calculate the mean and median of the following data set. Round your answer to the nearest tenth.

In describing a data set of measurements, the computation of numerical measures is irrelevant.

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

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 x₁ + 3, x₂ + 3, and x₃ + 3 is M + 3.