Mathematics > EXAM > GMATH: Mathematics in the Modern World First Semester (Batch 2) SY 2020 – 2021 QUIZ 03: Module 7 (All)

1. GMATH: Mathematics in the Modern World First Semester (Batch 2) SY 2020 – 2021 QUIZ 03: Module 7 QUESTIONNARE Name: Code/Schedule: Date Submitted: DIRECTION. Answer the following questio... ns below by selecting the letter that represents the best answer. Write the letter of choice in CAPITAL LETTER only. Use the attached answer sheet for your answers which includes your Full Name, Code/Class schedule, and Date of Submission. This must all be done in strictly handwritten using a BLUE/BLACK pen only. Provide a complete explanation beside each item that requires solution. 1. A value or measure obtained from a population. A. Statistics B. Inferential Statistics C. Parameter D. Descriptive Statistics 2. It is the center most value that divides the data into two equal parts. A. Mean B. Median C. Midrange D. Mode 3. A statistical measure that divides a set of observations into four equal parts. A. Quartiles B. Quantiles C. Percentiles D. Deciles 4. The following are the ages of the first ten students who enrolled in a certain college. Find the mean. 23, 21, 18, 17, 19, 21, 20, 18, 19, 24. A. 19 B. 22 C. 20 D. 21 5. Find the median of the following set of observation. 11,11,13,15,16,17,18,18,19,20. . 46 A. 15 B. 17.5 C. 16.5 D. 15.5 6. Find the mode of the set of observation shown. 15, 13, 13, 14, 17, 17, 18, 12, 17. A. 13 B. 14 C. 17 D. 15 7. All of these are the properties of median, EXCEPT: A. It is associated with ordinal data. B. It is also a unique value in any set of data. C. It may not exist. D. Its value is not affected by the extreme values in a set of data. 8. Mark wants to calculate his calculus grade. The teacher's policy is that the tests count 40%, quizzes 20%, homework 10%, projects 15% and the final exam is 15%. If Marks's test average is 92, his quizzes are 95, his homework is 100, projects 90 and final exam is 92, what will his final grade in the class be? A. 93.6 B. 93.7 C. 93.1 D. 93.8 9. According to percentiles, the median to be measured must lie in the A. 80th B. 40th C. 50th D. 100th 10.Which one of the following variables is NOT categorical? A. whether or not an individual has pierced ears B. religion C. length of a rattlesnake D. zip code 11.Gasoline prices (per litre) for the last five days were $0.60, $0.65, $0.70, $0.65, and $0.65. What is the standard deviation? A. 0.0316 B. 0.001 C. 0.0050 D. 0.0354 12.The following are the scores you shot in five rounds of golf: 70 80 75 75 80. Compute the population standard deviation A. 3.74 B. 196 C. 14 D. 70 . 47 13.The standard deviation is: A. The square root of the variance B. A measure of variability C. An approximate indicator of how numbers vary from the mean D. All of the above 14.Which of the following measures of central tendency could be computed on a variable that is measured on a nominal scale of measurement? A. Mean B. Median C. Mode D. All of the above 15.The nominal level of measurement is represented in which variable below? A. fear of crime B. temperature C. income D. gender 16.The ordinal level of measurement is represented in which variable below? A. fear of crime B. temperature C. income D. gender 17.When each member of a population has an equal chance of being selected, this is called: A. A snowball sample B. Simple random sampling C. A stratified sample D. A non-random sample 18.When people are sampled from a convenient, readily available population, this is called: A. Snowball sampling B. Stratified sampling C. Convenience sampling D. Random Sampling 19.Indicate which level of measurement is being used in the given scenario: The teacher of a class of third graders records the height of each student. A. Nominal . 48 B. Interval C. Ordinal D. Ratio 20.Indicate which level of measurement is being used in the given scenario: The teacher of a class of third graders records the percentage that each student got correct on the last science test. A. Nominal B. Interval C. Ordinal D. Ratio 21.Indicate which level of measurement is being used in the given scenario: A film critic lists the top 50 greatest movies of all time. A. Nominal B. Interval C. Ordinal D. Ratio 22.Indicate which level of measurement is being used in the given scenario: A local animal shelter keeps track of the breeds of dogs that come in. A. Nominal B. Interval C. Ordinal D. Ratio 23.Children in elementary school are evaluated and classified as non-readers (0), beginning readers (1), grade level readers (2), or advanced readers (3). The classification is done in order to place them in reading groups. Which level of measurement is being used in the given scenario? A. Nominal B. Interval C. Ordinal D. Ratio 24.Identify the scale of measurement for the following: heat measured in degrees celsius. A. Nominal B. Interval C. Ordinal D. Ratio 25.What is the first quartile (Q1) of this data set? 6, 7, 2, 1, 5, 2, 1, 6 A. 1 B. 2 C. 1.5 D. 2.5 . 49 26.In finding the D8 of Lance's score in Mathematics for the Third Quarter, he got the score 20. What does it mean? A. 8% of his scores are less than or equal to 20 B. 88% of his scores are less than or equal to 20 C. 80% of his scores are less than or equal to 22 D. 80% of his scores are less than or equal to 20 27.Convenience sampling is an example of A. probabilistic sampling B. stratified sampling C. nonprobabilistic sampling D. cluster sampling For numbers 28 and 29. Consider: The coefficient of variation of the height of 20 people selected at random from a given city is found to be 15%. The weight of the selected group has a mean value 72 kg and a standard deviation 8 kg. 28.The coefficient of variation for the weight of the selected group is A. 11.11 B. 8.33% C. 11.11% D. 8.33 29.The obtained results show that A. the weight is more variable than height. B. the weight is less variable than height. C. height and weight have the same degree of variation. D. height and weight are independent. 30.If the mean is 8, then the Mean absolute deviation of the scores 10, 9, 3, 8, 10 is A. 3 B. 5 C. 1 D. 2 31.The variance of 19, 21, 23, 25 and 27 is 8. The variance of 14, 16, 18, 20 and 22 is: A. Greater than 8 B. Less than 8 C. 8 D. 3 32.If standard deviation of the values 2, 4, 6, 8 is 2.236, then the standard deviation of the values 4, 8,12, 16 is: A. 0 B. 4.472 5.163977795 . 50 C. 4.236 D. 2.236 33.Assume that the monthly incomes for a sample of 10 people are listed as P3,400, P3,100, P2,900, P3,700, P4,500, P2,800, P3,000, P4,100, P5,100, and P12,000. The median for the distribution set is A. P3,400 B. P3,650 C. P3,550 D. P3,700 34.The standard deviation for the distribution set is in problem 33 is A. P2, 700 2621.789041 B. P2,750 C. P2,754 D. P2,754.07 35.The measure of dispersion that is influenced most by extreme values is A. the variance B. the range C. the standard deviation D. the interquartile range 36.The first quartile A. contains at least one third of the data elements B. is the same as the 25th percentile C. is the same as the 50th percentile D. is the same as the 75th percentile For problems 37-39: The test scores of 19 students are listed below. 36 45 49 53 55 56 59 61 62 65 67 72 77 80 81 85 91 94 96 37.Find the 34th percentile A. 55 B. 56 C. 59 D. 61 38.Find the 7th decile A. 77 B. 80 C. 81 D. 85 39.Find the interquartile range A. 24 B. 25 C. 26 D. 27 40.The ages of the 21 members of a track and field team are listed below. . 15 18 18 19 22 23 24 24 24 25 25 26 26 27 28 28 30 32 33 40 42 Find the mean and the standard deviation. A. SD: 6.7, Mean 25.4 B. SD: 6.54, Mean 25.4 C. SD: 6.7, Mean 26.14 D. SD: 6.54, Mean 26.14 GMATH: Mathematics in the Modern World First Semester (Batch 2) SY 2020 – 2021 QUIZ 03: Module 7 ANSWER SHEET Name: _________________________________________ Code/Schedule: _________________________________________ Date Submitted: _________________________________________ MULTIPLE CHOICE. Answer the following questions by selecting the best answer. Write the letter of your choice as the best answer for each number in the space provided. (50 points) (Strictly in HANDWRITTEN and in CAPITAL LETTERS only) . 52 Score: /40 [Show More]

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