PROBABILITY & STATISTICS A. Identify whether each statement is true or false. Choose T if the statement if true, otherwise F. 1. Measures of Central Tendency is point that can be used as the most representative value for a distribution of scores. 2. Mean is the least reliable measure of central tendency. 3. The median is influenced by extreme values. 4. The median is the most appropriate central measure when the data is in the ordinal scale. 5. The mode is sometimes referred to as the inspection average, since it is a quick approximation of the average. The mode is the difference between the maximum and minimum data entries. 7. The most frequently occurring score in the given set of data is the mean. 8. Mode is the appropriate measure for nominal type of data. 9. Mean may be a disadvantageous measure of central tendency if there are outliers since extreme values greatly affect its value. 10. A data set may have more than one median. B. Choose the letter of the best answer. 11. Which measure is always the same as the 50th percentile? A. mean C. median B. mode D. lower quartile 12. Given the data: 9, 14, 15, 52, 56, 58, 68, 72, 75, 97, 97, what is the mean? A. 55.52 C. 55.74 B. 55.73 D. 57.47 13. The average medical college admission test (MCAT) scores for s sample of seven medical schools are given: 11.0, 11.7, 10.3, 11.7, 11.7, 10.7, 9.7. What is the median for the data set? A. 9 C. 10 B. 11 D. 12 14. Which data set has a mean less than 50, a median of 47, and a mode of 43? A. 43, 43, 46, 47, 51, 59, 64 C. 42, 43, 43, 46, 47, 59, 63 B. 43, 43, 46, 47, 51, 54, 59 D. 42, 43, 45, 48, 49, 50, 50 15. Consider the data set: 78, 81, 100, 69, 97, 81, 86. Which of the measure of central tendency that has the greatest value? A. Mean C. Median B. Mode D. All 3 measures with same amount 16. The box-and-whisker plot represents the number of magazine subscriptions sold by members of a club. B C D E Which statistical measures do points B, D, and E 10 12 14 16 18 20 represent, respectively? A. Minimum, median, maximum C. first quartile, third quartile, maximum B. first quartile, median, third quartile D. median, third quartile, maximum