5.it refers to the difference of the highest and the lowest score in a set of data. A.mean
B.median
C.mode
D.range
6.it means average.
A.mean
B.meadian
C.mode
D.range
7.it means middle.
A.mean
B.median
C.mode
D.range
8.what is the measure of central tendency that divides an arranged ( ascending or descending) distribution into two equal parts?
A.mean
B.median
C.mode
D.range
9.the mean score of a set of 40 score is 81. find the sum of the 40 test scores.
A.2,250
B.2,280
C.2,820
D.3,240
10.what is the most stable and useful measure of central tendency?
A.mean
B.median
C.mode
D.range
11.vic's scores in three-unit tests are 92, 87 and 88. what must his score be on the fourth test to get an average of 90?
A.90
B.91
C.92
D 93
12.what is the median score of 50 students if 10 of them got 23, 3 got 25, 6 of them got 28, another 6 got 30, 12 got 33, and the rest got 35?
A.35
B.33
C.28
D.25
13.if the heights in centimeters of a group of students are 180, 180, 173, 170 and 167, what is the mean height of these students?
A.170
B.173
C.174
D.180
14.seven basketball players shoot 30 free throws during a practice session. the numbers of baskets they make are listed below. what is the median number of baskets made? 22, 23, 11, 18, 22, 20, 15 A.11
B.15
C.18
D.20
15.margie has grades 86, 68 and 79 in her first three tests in algebra. what grade must she obtain on the fourth test to get an average of 78?
A.76
B.77
C.78
D.79
16.in a survey of 10 households, the number of children was found to be 4, 1, 5, 4, 3, 7, 2, 3, 4, 1. find the mode.
A.1
B.3
C.4
D.5
17.what is a measure of variation that makes use of all the scores in a distribution?
A.variance
B.range
C.standard deviation
D.mean deviation
18.what do you call to the square root of the variance?
A.variance
B.range
C.standard deviation
D.mean deviation
19.if the range of a set of scores us 14 and lowest score is 7, what is the highest score?
A.21
B.24
C.14
D.7
20.what is the simplest measure of variability?
A.variance
B.range
C.standard deviation
D.mean deviation
21.this measure of variability tells you how far, on average, all values are from the middle.
A.variance
B.range
C.standard deviation
D.mean deviation
22.the following data represents the hours worked over a eight week period: 36, 40, 40, 42, 40, 50, 40, and 44. calculate the range for this set of data.
A.36
B.40
C.14
D.50
23.A face shield vendor records the number of pieces he sells daily from monday to saturday and obtains the followingvfigures: 23, 18, 27, 30, 43 and 78. what is the range of the given set of data?
A.58
B.60
C.62
D.64
24.which of the following is not a measure of central tendency?
A.mode
B.variance
C.mean
D.median
25.if the range of a set of scores is 14 and the lowest score is 7, what is the highest score?
A.21
B.24
C.14
D.7​