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MATH
What I know
1. What measure refers to the numerical value in the central region of a distribution of scores?
A. Central Tendency
B. Position
C. Skewness
D. Variability

2. What measure of central tendency is commonly known as "average"?
A. Range
B. Mean
C. Median
D. Mode

3. What measure of central tendency refers to the middle value of a data set?
A. Range
B. Mode
C. Median
D. Mean

4. What is the mean of the frequency distribution below? Round off your answer to the nearest tenth.
Score|Frequncy
14 | 4
21 | 17
25 | 9
29 | 18
35 | 8

A. 24.2
B. 25.7
C. 16.7
D. 28.3

5. Which of the following set of data 105, 107, 120, 111, 101 and 115 is the middle value?
A. 107
B. 109
C. 111
D. 115

6. What is the mode of the following set of scores achieved by a team for seven games? 98, 97, 85, 84, 98, 97, 97

A. 85
B. 94
C. 97
D. 98

7. Consider the data below.
40 40 40 100 100 120 120 120 160 170 180 180 240
Which of the following statement(s) is/are correct?
i. Changing one of the 40s to 400 will affect the value of the mean.
ii. Changing one of the 40s to 400 will make the mode equal to 120.
iii. Changing the last value of 240 to 300 will affect the median.
A. i only
B. ii only
C. iii only
D. i and ii

For now. 8-10, refer to the given table
The grades of 50 high school students in Science are given in the table below.
GRADES | FREQUENCY
95-99 | 1
90-94 | 8
85-89 | 14
80-84 | 18
75-79 | 5
70-74 | 4
|n=50

8. What is the mean grade of 50 high school students in Science?
A. 82
B. 83
C. 84
D. 85

9. What is the median of the given data table?
A. 82. 84
B. 82. 94
C. 83. 84
D. 83. 94

10. What is the mode of the given data table?
A. 83.22
B. 83.32
C. 83.42
D. 83.42​