Deck 7: Average and Range Calculations

Question 1

Find the median of the set = { 11,22,33,55,66,99 }

A)55
B)44
C)33
D)22

Answer 1

B

Question 2

Find the mode of the Set = {1,3,3,6,9}

A)3
B)6
C)9
D)1

Answer 2

A

Question 3

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

A)77
B)66
C)155
D)38

Answer 3

B

Question 4

Find the mode of the set (8, 5, 7, 10, 15, 21, 5, 7, 2, 5)

A)15
B)21
C)7
D)5

Question 5

Find the median of the set of numbers: 100, 200, 450, 29, 1029, 300 and 2001.

A)300
B)29
C)7
D)4080

Question 6

The median of the data 13, 15, 16, 17, 19, 20 is:

A)30/2
B)31/2
C)33/2
D)35/2

Question 7

Find the mode of 8, 5, 7, 10, 15, 21, 5, 7, 2, 5

A)5
B)7
C)2
D)10

Question 8

Find the median of the set of numbers: 21, 3, 7, 17, 19, 31, 46, 20 and 43.

A)19
B)20
C)3
D)16

Question 9

The following numbers represent the ages of people on a bus: 3, 6, 27, 13, 6, 8, 12, 20, 5, 10. Calculate their mean of their ages.

A)11
B)6
C)9
D)110

Question 10

If the mode is 14 and value of mean is 5 then the value of median is

A)12
B)18
C)8
D)14

Question 11

The sample mean is a

A)Parameter
B)statistics
C)variable
D)constant

Question 12

The suitable average for qualitative data is

A)mean
B)median
C)mode
D)Geometric mean

Question 13

. The average salary of a group of unskilled workers is 10,000 and for a group of skilled workers is 15,000. Combines salary is 12,000. What is the percent of skilled workers?

A)40%
B)50%
C)60%
D)None of these

Question 14

The averages are affected by change of:

A)Origin
B)Scale
C)Origin and Scale
D)None of Above

Question 15

When the values in a series are not of equal importance, we calculate the:

A)Arithmetic mean
B)Geometric mean
C)Weighted mean
D)Mode

Question 16

A data set may have no mode, one mode, or multiple modes.

A)True
B)False
C)none
D)all

Question 17

Which partition value divides the series into two equal parts.

A)P10
B)P5
C)P50
D)P90

Question 18

A furniture retail chain operates several stores across the country. A table is to be constructed to showing the number of employees in each region, organized into groups. Which of the following sets of categories would NOT be suitable for use in such a table?

A)0 - 10, 11-20
B)0 to less than 10, 10 to less than 20
C)0-10, 10-20
D)0 up to 10, 10 up to 20

Question 19

The cumulative frequency for a particular class is equal to 35. The cumulative frequency for the next class will be .

A)equal to 65.
B)35 minus the next class frequency.
C)less than 35.
D)35 plus the next class frequency.

Question 20

What is the modal value for the numbers 4, 3, 8, 15, 4, 3, 6, 3, 15, 3, 4.

A)3
B)4
C)6
D)15

Question 21

If in a discrete series 75% values are less than 30, then:

A)Q3 < 75
B)Q3 < 30
C)Q3 = 30
D)Q3 >30

Question 22

One of the following methods of calculating mode is:

A)Mode = 3 Median - 2 Mean
B)Mode = 2 Median - 3 Mean
C)Mode = 3 Median + 2 Mean
D)Mode = 2 Median - 2 Mean

Question 23

According to percentiles, the median to be measured must lie in

A)80th
B)50th
C)100th
D)30th

Question 24

The sum of the squares of the deviations of the variable is when taken about arithmetic mean

A)Maximum
B)Zero
C)Minimum
D)None

Question 25

The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be:

A)10
B)1.1
C)11
D)10.1