Exam (elaborations)
Statistics and Probability or Mathematics
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Statistics and Probability or Mathematics
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STATISTICS AND PROBABILITY 80 5 5Name: 57- 6 62. 375 144 864
______________________________________ 68 5
Section: ________________ Score: 45- 10 50. 505 0 0
______________ 56 5
Instruction: Encircle the wrong answer in 33- 4 38. 154 144 576
each question. (Right minus wrong, NO 44 5
ERASURE) 21- 3 26. 79.5 576 1728
1. This is done by numbering each 32 5
subject of the population and then 9-20 2 14. 29 1296 2592
selecting nth number. 5
a. Random Sampling
b. Systematic Sampling
2. This involves data that arranged in
some order, but difference between STATISTICS AND PROBABILITY
data. Name:
a. Ordinal level b. Interval level ______________________________________
For item no. 3-5 Section: ________________ Score:
Seven friends in Math class of 30 ______________
students receives test grades of 43, 40, 45, Instruction: Encircle the wrong answer in
43, 44, 48, and 45. each question. (Right minus wrong, NO
3. Find the mean of these test scores. ERASURE)
a. 44 b. 45 1. This is done by numbering each
4. What is the mode? subject of the population and then
a. 43 and 45 b. 43 selecting nth number.
only a. Random Sampling
5. What is the Median? b. Systematic Sampling
a. 45 b. 44 2. This involves data that arranged in
Refer to the table below to answer
some order, but difference between
questions 6 - 9
data.
Scor f LB x fx cf a. Ordinal level b. Interval level
es For item no. 3-5
35-39 6 34.5 37 222 30 Seven friends in Math class of 30
30-34 10 29.5 32 320 24 students receives test grades of 43, 40, 45,
25-29 12 24.5 27 324 14 43, 44, 48, and 45.
20-24 2 19.5 22 44 2 3. Find the mean of these test scores.
6. Find the mean. a. 44 b. 45
a. 30.33 b. 31.33 4. What is the mode?
7. Find the median. a. 43 and 45 b. 43
a. 35 b. 30 only
8. Find the mode. 5. What is the Median?
a. 28.67 b. 29.67 a. 45 b. 44
9. What is the class width? Refer to the table below to answer
a. 6 b. 5 questions 6 - 9
For item 10 – 12 Scor f LB x fx cf
The following numbers were es
obtained by sampling a population 5, 8, 35-39 6 34.5 37 222 30
4, 8, 10, 15 , 12 30-34 10 29.5 32 320 24
10. What is the range? 25-29 12 24.5 27 324 14
a. 9 b. 11 20-24 2 19.5 22 44 2
11. If the mean is equal to 9. 6. Find the mean.
What is the Variance? a. 30.33 b. 31.33
a. 14.83 b. 25.45 7. Find the median.
12. What is the standard a. 35 b. 30
deviation? 8. Find the mode.
a. 5.04 b. 3.85 a. 28.67 b. 29.67
For item number 13 – 17. Based your 9. What is the class width?
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