If the mode median and mean of a certain distribution are 7 8 9 respectively

# If the mode median and mean of a certain distribution

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6. If the mode, median and mean of a certain distribution are 7, 8, 9 respectively, then the distribution is: A. skewed negatively B. not skewed C. skewed positively D. Symmetrical E. bimodal 7. Which of the following measures of central tendency tends to be most influenced by an extreme score? 3 Ms.Lubna Ineirat
8. Among ten 2nd year PH students, 3 students scored 4, 4 students scored 5, 2 students scored 9 and 1 student scored 10 in this exam. What is the mean of the scores? 9. The following set of scores is obtained on Biostatistics test, X: 4, 6, 8, 9, 11, 13, 16, 24, 24, 24, 26. If the score 16 is corrected as 19. Which of the following indices will be changed? 4 Ms.Lubna Ineirat
10. The mean of the population of ten scores, 78, 91, 91, 94, 74, 23, 63, 22, 78, 89 is 70.3, and the modes are 78 and 91. The skewness of the population is: A. Negative B. Zero C. Positive D. not determined E. Positive or negative depending on the score.

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