Question 1

(i. The median for the distribution of number of sales per hour is 7 sales per hour.
(ii. The ﬁrst quartile for the distribution of number of sales per hour is 7 sales per hour.
(iii) For the distribution of number of sales per hour, 50% of the observations are between 3 and 7.5.
A) (i), (ii) and (iii) are all correct statements
B) (i) and, (ii) are correct statements but not (iii).
C) (i) and, (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all false statements.

Question 2

Calculate the Software Coeﬃcient of Skewness for the following data:
5 5 7 7 7.
A) 0.61
B) -0.61
C) 0
D) 2.1
E) -2.1

Accepted Answer

-0.61

Question 3

(i. The range for laminate ﬂooring is 0 or none.
(ii. The standard deviation for nylon carpet is 6.64 cents
(iii) The range for nylon carpet is $0.12 or 12 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (iii) are correct statements but (ii).

Question 4

(i. The range for laminate ﬂooring is 0 or none.
(ii. The variance for laminate ﬂooring is 1.
(iii) The range for nylon carpet is $0.12 or 12 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (iii) are correct statements but (ii).

Question 5

(i. Correct to two decimal places, the sample standard deviation is approximately 25.99.
(ii. Correct to two decimal places, the sample variance is approximately 675.25.
(iii) The range is approximately 100.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (ii) are correct statements but (iii).

Question 6

(i. The range for laminate ﬂooring is 1.
(ii. The standard deviation for nylon carpet is 4.64 cents
(iii) The range for nylon carpet is $0.12 or 12 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(ii) and (iii) are correct statements, but (i).

Question 7

(i. The standard deviation for laminate ﬂooring is 0.
(ii. The standard deviation for polyester carpet is $1.88.
(iii) The range for polyester carpet is $1.04.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (iii) are correct statements but (ii).

Question 8

(i. The median for the distribution of number of sales per hour is 5 sales per hour.
(ii. The ﬁrst quartile for the distribution of number of sales per hour is 4 sales per hour.
(iii) For the distribution of number of sales per hour, 50% of the observations are between 4 and 6.5.
A) (i), (ii) and (iii) are all correct statements
B) (i) and, (ii) are correct statements but not (iii).
C) (i) and, (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all correct statements

Question 9

(i. The range for laminate ﬂooring is 0 or none.
(ii. The variance for laminate ﬂooring is 0.
(iii) The range for nylon carpet is $0.15 or 15 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (ii) are correct statements but (iii).

Question 10

(i. The range for laminate ﬂooring is 0 or none.
(ii. The variance for laminate ﬂooring is 0.
(iii) The range for nylon carpet is $0.12 or 12 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all correct statements

Question 11

(i. The median for the distribution of number of sales per hour is 6 sales per hour.
(ii. The ﬁrst quartile for the distribution of number of sales per hour is 4 sales per hour.
(iii) For the distribution of number of sales per hour, 50% of the observations are between 4 and 6.5.
A) (i), (ii) and (iii) are all correct statements
B) (i) and, (ii) are correct statements but not (iii).
C) (i) and, (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(ii) and (iii) are correct statements, but (i).

Question 12

(i. The median for the distribution of number of sales per hour is 5 sales per hour.
(ii. The ﬁrst quartile for the distribution of number of sales per hour is 4 sales per hour.
(iii) For the distribution of number of sales per hour, 50% of the observations are between 3 and 7.5.
A) (i), (ii) and (iii) are all correct statements
B) (i) and, (ii) are correct statements but not (iii).
C) (i) and, (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and, (ii) are correct statements but (iii).

Question 13

(i. The range for laminate ﬂooring is 0 or none.
(ii. The mean deviation for laminate ﬂooring is 0.
(iii) The range for nylon carpet is $0.12 or 12 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all correct statements

Question 14

(i. Correct to two decimal places, the sample standard deviation is approximately 52.98.
(ii. Correct to two decimal places, the sample variance is approximately 675.25.
(iii) The range is approximately 125.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(ii) and (iii) are correct statements, but (i).

Question 15

(i. The range for laminate ﬂooring is 0 or none.
(ii. The standard deviation for nylon carpet is 4.64 cents
(iii) The range for nylon carpet is $0.15 or 15 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (ii) are correct statements but (iii).

Question 16

(i. Correct to two decimal places, the sample standard deviation is approximately 25.99.
(ii. Correct to two decimal places, the sample variance is approximately 675.25.
(iii) The range is approximately 125.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all correct statements

Question 17

(i. The range for laminate ﬂooring is 0 or none.
(ii. The standard deviation for nylon carpet is 4.64 cents
(iii) The range for nylon carpet is $0.12 or 12 cents.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all correct statements

Question 18

(i. Based on the values of the arithmetic mean, median, and mode, the distribution is most likely
Symmetrical.
(ii. The arithmetic mean is 20.4.
(iii) The median is 21.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i), (ii) and (iii) are all correct statements

Question 19

(i. The range for laminate ﬂooring is 0 or none.
(ii. The range for polyester carpet is $0.04 or 4 cents.
(iii) The mean deviation for laminate ﬂooring is 0.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (iii) are correct statements but (ii).

Question 20

(i. The standard deviation for laminate ﬂooring is 0.
(ii. The standard deviation for polyester carpet is $1.48.
(iii) The range for polyester carpet is $1.04.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Accepted Answer

(i) and (iii) are correct statements but (ii).

Quiz 3: Describing Data: Numerical Measures

(i. The median for the distribution of number of sales per hour is 7 sales per hour. (ii. The ﬁrst quartile for the distribution of number of sales per hour is 7 sales per hour. (iii) For the distribution of number of sales per hour, 50% of the observations are between 3 and 7.5.

Calculate the Software Coeﬃcient of Skewness for the following data: 5 5 7 7 7.

(i. The range for laminate ﬂooring is 0 or none. (ii. The standard deviation for nylon carpet is 6.64 cents (iii) The range for nylon carpet is $0.12 or 12 cents.

(i. The range for laminate ﬂooring is 0 or none. (ii. The variance for laminate ﬂooring is 1. (iii) The range for nylon carpet is $0.12 or 12 cents.

(i. Correct to two decimal places, the sample standard deviation is approximately 25.99. (ii. Correct to two decimal places, the sample variance is approximately 675.25. (iii) The range is approximately 100.

(i. The range for laminate ﬂooring is 1. (ii. The standard deviation for nylon carpet is 4.64 cents (iii) The range for nylon carpet is $0.12 or 12 cents.

(i. The standard deviation for laminate ﬂooring is 0. (ii. The standard deviation for polyester carpet is $1.88. (iii) The range for polyester carpet is $1.04.

(i. The median for the distribution of number of sales per hour is 5 sales per hour. (ii. The ﬁrst quartile for the distribution of number of sales per hour is 4 sales per hour. (iii) For the distribution of number of sales per hour, 50% of the observations are between 4 and 6.5.

(i. The range for laminate ﬂooring is 0 or none. (ii. The variance for laminate ﬂooring is 0. (iii) The range for nylon carpet is $0.15 or 15 cents.

(i. The range for laminate ﬂooring is 0 or none. (ii. The variance for laminate ﬂooring is 0. (iii) The range for nylon carpet is $0.12 or 12 cents.

(i. The median for the distribution of number of sales per hour is 6 sales per hour. (ii. The ﬁrst quartile for the distribution of number of sales per hour is 4 sales per hour. (iii) For the distribution of number of sales per hour, 50% of the observations are between 4 and 6.5.

(i. The median for the distribution of number of sales per hour is 5 sales per hour. (ii. The ﬁrst quartile for the distribution of number of sales per hour is 4 sales per hour. (iii) For the distribution of number of sales per hour, 50% of the observations are between 3 and 7.5.

(i. The range for laminate ﬂooring is 0 or none. (ii. The mean deviation for laminate ﬂooring is 0. (iii) The range for nylon carpet is $0.12 or 12 cents.

(i. Correct to two decimal places, the sample standard deviation is approximately 52.98. (ii. Correct to two decimal places, the sample variance is approximately 675.25. (iii) The range is approximately 125.

(i. The range for laminate ﬂooring is 0 or none. (ii. The standard deviation for nylon carpet is 4.64 cents (iii) The range for nylon carpet is $0.15 or 15 cents.

(i. Correct to two decimal places, the sample standard deviation is approximately 25.99. (ii. Correct to two decimal places, the sample variance is approximately 675.25. (iii) The range is approximately 125.

(i. The range for laminate ﬂooring is 0 or none. (ii. The standard deviation for nylon carpet is 4.64 cents (iii) The range for nylon carpet is $0.12 or 12 cents.

(i. Based on the values of the arithmetic mean, median, and mode, the distribution is most likely Symmetrical. (ii. The arithmetic mean is 20.4. (iii) The median is 21.

(i. The range for laminate ﬂooring is 0 or none. (ii. The range for polyester carpet is $0.04 or 4 cents. (iii) The mean deviation for laminate ﬂooring is 0.

(i. The standard deviation for laminate ﬂooring is 0. (ii. The standard deviation for polyester carpet is $1.48. (iii) The range for polyester carpet is $1.04.