Question

A magazine reported the accompanying summary for the household incomes of its two types of subscribers, the print reader and the digital reader. Interpret the median salary for the print and digital readers.

Audience	Median
Print readers	$92,400
Digital readers	$88,600

Interpret the median income for the print readers. Choose the correct answer below.

A.

The arithmetic average of the print reader's incomes is $92,400.

B.

The most common value for a print reader's income is $92,400.

C.

Half of the incomes for the print readers are smaller than or equal to $92,400, and the other half of the incomes for the print readers are larger than or equal to $92,400.

D.

Half of the incomes for the print readers are smaller than or equal to $88,600, and the other half of the incomes for the print readers are larger than or equal to $88,600.

The following is a set of data from a sample of

n equals 5n=5.

10 1 7 8 510   1   7   8   5

  

a. Compute the mean, median, and mode.

b. Compute the range, variance, standard deviation, and coefficient of variation.

c. Compute the Z scores. Are there any outliers?

d. Describe the shape of the data set.

a. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

A.The mean is

nothing.

(Type an integer or a decimal. Do not round. Use a comma to separate answers as needed)

B.

There is no solution.

The following data set shows the average room price (in US$) paid by various nationalities while traveling abroad in a recent year. Complete parts (a) through (c) below.

115

95

84

69

73

62

a. Compute the mean, median, and mode.

The mean is

Answer 1

1. Answer : C. Half of the incomes for the print readers are smaller than or equal to $92,400, and the other half of the incomes for the print readers are larger than or equal to $92,400.

2. Sample = {10, 1, 7, 8, 5}

Sample in increasing order = {1, 5, 7, 8, 10}

Mean = (10+1+7+8+5)/ 5 = 6.2

Median = (n+1)/2 th value = 3rd value = 7

Mode = None( as all values appear only once. so there is no mode)

Range = Maxium-mimimum = 10-1 = 9

Variance, s² =

Standard deviation, s =

coefficient of variation =

There are no outliers.

3. Sample in increasing order = {62, 69, 73, 84, 95, 115}

Mean = (62+ 69+ 73+ 84+ 95+115)/6 = 83

Median = [(n/2 th +(n+1)/2 th]/2 = (3rd +4th value)/2 = (73+84)/2 = 78.5

Mode = None