Instructions: Multiple choice. Choose the correct answer.

1. Consider the following excerpt from an article: The average person spends Php 2000.00 on traditional Valentine's Day gifts last year, which is an increase of Php 250.00 from the previous year. It is also found that men spent more than twice the amount women spent during Valentine's Day. Which division of statistics is being shown in the article above?

A. Descriptive Statistics

B. Inferential Statistics

C. Both Descriptive and Inferential

D. Neither Descriptive nor Inferential

2. A researcher would like to determine the political preference of the nation before the upcoming midterm elections. From where should the researcher collect his/her data?

A. From all the voting population in the nation.

B. From a sample of people living in one region.

C. From a sample of people randomly chosen across the nation.

D. From all the people in a randomly selected region.

3-4. A researcher would like to determine the proportion of cities that has a semiautomated waste management system. The student wants to estimate the population proportion with a margin of error of .10, prefers a level of confidence of 90%, and has no estimate for the population proportion. What is the required sample size?

A. 67

B. 68

C. 69

D. 70

5. Cellphone number are at what level of measurement?

A. Nominal

B. Ordinal

C. Interval

D. Ratio

6. It refers to an attribute or characteristic of a population.

A. Statistic

B. Data

C. Parameter

D. Sample1

7. A manner of collecting data by asking the participants questions directly or indirectly.

A. Questionnaire

B. Interview

C. Registration

D. Survey

8. This method of gathering information is enforced by law

A. Interview Method

B. Observation Method

C. Experiment Method

D. Registration Method

9. The students were subdivided into 24 different categories according to major, classification, gender and national origin. A proportionate number from each group was sampled.

A. Cluster

B. Stratified

C. Random

D. Systematic

10. Marina sampled every tenth member of the population in her studies. What type of sampling would she be using?

A. Cluster

B. Stratified

C. Random

D. Systematic

11. Which level(s) of measurement is(are) considered quantitative?

A. Interval and Nominal

B. Ratio and Ordinal

C. Ordinal and Nominal

D. Ratio and Interval

12. It is the process of selecting a sample from a large group based on the principle of chance.

A. Sampling

B. Simple Random Sampling

C. Non-probability Sampling

D. Probability Sampling

13. A sample of 10 students are weighed and ranked according to their weight. The median weight is the

A. Weight of the fifth student

B. The median does not exist

C. Weight of the sixth student

D. Average of the fifth and sixth

14. The value that occurs most often in a set of data is called

A. Mean

B. Mode

C. Median

D. Range

15. What is the value of the mode when all values in the data set are distinct?

A. Zero

B. None

C. One

D. Number of observations

16. Which of the following would be affected the most if there is an extremely large value in the data set?

A. Mean

B. Median

C. Mode

D. Frequency

17. An instructor recorded the quiz scores (out of a possible 10 points) for the 12 students present - 7, 4, 4, 7, 2, 9, 10, 6, 7, 3, 4, 4. The mode for this set of scores is

A. 7

B. 10

C. 4

D. None

18-19. Sales representatives earned these commissions last month: PhP 4377.00 PhP 3183.00 PhP 1970.00 PhP 2270.00 PhP 3860.00PhP 2508.00 PhP 1569.00 What was the mean commissioned earned?

A. PhP 2819.57

B. PhP 950.00

C. PhP 1026.72

D. PhP 2508.00

20-21. The test scores of 10 randomly selected students are listed below. Find the median. 30 35 43 44 47 48 54 55 57 59

A. 47

B. 48

C. 47.5

D. 48.5