Answer the following:1. Consider the following data: Sales (pesos): 20,000 21,000 18,000 25,000 120,000 5,000 1,000 2,000 Cost (pesos): 10,000 8,000 7,000 9,000 6,500 7,500 8,500 6,900 Number of Customers: 25 25 25 25 22 25 12What average is most appropriate for each variable? Give also the value of each average. (12 points)2. Two applicants for a secretarial position in the Engineering firm were given trails to test their encoding speed. The following following data shows the number of words per minute that applicants were able to finish:Ms.A: 17 19 22 24 24 27 28 28 28Ms B: 17 19 21 22 25 26 27 28 32Who is more consistent with her typing speed?Use the most stable average and themost reliable measure of dispersion. (10 points)3. Jose took a psychology exam whose mean was 70 with standard deviation of 5. He also took a calculus exam whose mean was 80 with standard deviation of 10. He scored 85 on both exams. On which exam did he do better compared to the other students who took the exam? Show. (10 points)4. If the average IQ of the set of students is 120 with a standard deviation of 5, describe the possible raw data set at 95% probability. (5 points)II. Multiple choice:1. What division of statistics that is concerned with giving implications regarding the population by studying only a representative sample?a) demographics b) inferential c)descriptive d) vital statistics 2. A congressman who is running for the office of senator with 3.5 million registered voters commissions a survey. In the survey, 46% of the 8,000 registered voters interviewed say they plan to vote for him. What is the population of interest?a) the 3.5 million registered voters in the country. b) the 8,000 registeredvoters interviewed.c) the 46% who plan to vote for her. d) all the residents of the country. 3. A study is under way to determine the average height of all 3,000 century trees in Mt. Talomo. The heights of 950 randomly selected century trees were measured and analyzed. What is the sample in this study?This study source was downloaded by 100000834887570 from CourseHero.com on 11-19-2021 02:57:06 GMT -06:00https://www.coursehero.com/file/71838951/Answer-the-followingdocx/This study resource wasshared via CourseHero.coma) the average height of the 950 randomly selected century trees b) the average height of all the century trees in Mt. Talomo c) all the century trees in Mt. Talomo d) the 950 century tress selected at random from Mt. Talomo 4. Which of the following statements about pie charts is FALSE?a) A pie chart is a graphical representation of a relative frequency distribution.b) You can always determine frequencies for each category by looking at a pie chart.c) The total percentage of all the slices of a pie chart is 100%.d) The area of a slice of a pie chart is the proportion of all the individuals that fall into each category. 5. The relationship between two interval variables is graphically displayed by what type of graph?a) scatter diagram b) histogram c) bar chart d) pie chart 6. Which of the following variables gives a continuous type of data?a) pages of a book b) employee ID No. c) number of children in a family d) hours of sleep 7. The data obtained by a health worker from the different households in a certain a barangay from Calinan District include their religion, political affiliation, source of income, and tribe membership. What type of data are these?a) discrete data b) continuous data c) quantitative data d) qualitative data 8. The National Police Commission hires new police officers to be deployed in Region XI. On the process, they conducted a qualification exam to all the applicants. What level of measurement are the scores obtained by these applicants?a) nominal b) ordinal c) interval d) ratio 9. Which of the following could NOT be a source of secondary data?a) newspaper b) journals c) published researchpapers d) survey questionnaire 10. Which of the situations identifies when to use pie charts and/or bar charts?a) You want to describe a single set of data. b) Your data is nominal.c) You want to show the number or the percentage of individuals in each category. d) All of these choices are true.This study source was downloaded by 100000834887570 from CourseHero.com on 11-19-2021 02:57:06 GMT -06:00https://www.coursehero.com/file/71838951/Answer-the-followingdocx/This study resource wasshared via CourseHero.com11. Which of the following statements is true for the following observations: 9, 8, 7, 9, 6, 11, and 13?a) The mean, median and mode are all equal. b) Only the mean and median are equal.c) Only the mean and mode are equal. d) Only the median and mode are equal. 12. Which of these measures of central location is NOT sensitive to extreme values?a) The mean. b) The median. c) The mode. d) All of these choices are true. 13. The mean score for a class of 30 students was 75. Fifteen male students in the class averaged 70. What is the mean of fifteen female students?a) 85 b) 80 c) 75 d) 70 14. If two data sets have the same range, then which of the following statements is correct?a) the distances from the smallest to largest observations in both sets will be the sameb) the smallest and largest observations are the same in both