ISVNU-S1,09 MCQ Revision Question, S1 09

ISVNU-S1,09 MCQ Revision Question, S1 09 - 1 The weights of...

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1. The weights of tennis players in kg. is a ratio scale because A it has magnitude. B it has equal sized interval. C it has a true zero. D it has magnitude, equal sized interval and a true zero. 2. The median weight of the students is 50 kg. and the mean weight is 46 kg. It means that A the weights of the students are normally distributed. B the weights of the students are negatively distributed. C the weights of the students are positively distributed. D the weights of the students are uniformly distributed. 3. When a decision of the population mean is made based on the knowledge of the sample mean, it is known as A qualitative data. B inferential statistic. C rationalism approach. D descriptive statistic. 4. For which of the following data types can mean be properly determined? A. Only ordinal scale. B. Only ratio scale. C. Only Interval scales. D. Interval and ratio scales. 5. The coefficient of variation has A. the same units as the mean. B. squared units. C. no unit of measurement D. none of the above 6. If the interquartile range of the ages of students is 10 years and Q 1 is 8 years Which one of the following statement is true? A. Q 3 is 18 years and median is 13 years. B. Q 3 is 18 years and median is unknown. C. Q 3 is unknown and median is 13 years. D. Both Q 3 and median are unknown.

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7. The Chebyshev’s theorem can be used when the distribution of the data set is A. positively skewed. B. negatively skewed. C. bell-shaped distribution. D. either A , B or C. Use the following information to answer questions 8, 9 and 10 The following are ages in years of a random sample of 8 customers in a hypermarket. 37 18 23 13 40 27 31 35 8. The sample mean age of the sample of customers is A. 28 B. 29 C. 27 D. 31 9. The sample variance is A. 8.90 B. 79.25 C. 9.52 D. 90.57 10. The median age is A. 27 B. 29 C. 31 D. 35 11. If the data is either positively or negatively skewed, which one of the following is the most appropriate measure of central tendency? A. Mean B. Median C. Mode D. Coefficient of variation 12. In the box below which one of the following statement is true about presence of outliers.
BoxPlot Of Marks Of Random Sample Of 40 Students 0 2 4 6 8 10 12 2 22 42 62 82 102 Marks A. 100 is the outlier B. only 2 is the outlier C. 2 and 3 are outliers D. there is no outlier 13. When the means for two different sets of data are different, which of the following is the best measure of variation? A. coefficient of variation B. standard deviation C. Mean absolute deviation D. median 14. Which one of the following is not a measure of dispersion? A. Mean absolute deviation B. Quartile variation C. Standard deviation D. Mode 15. Based on a random sample of 1000 residents in a city, the proportion of smokers in the city was estimated to be between 35% to 40%. This is an example of A. descriptive statistics B. inferential statistics C. summary statistics D. discrete data 16. The student told his parents that he has a “gut feeling” that he has a 70% chance

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This note was uploaded on 07/29/2011 for the course BUS 444 taught by Professor Lynn during the Spring '11 term at Keuka.

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ISVNU-S1,09 MCQ Revision Question, S1 09 - 1 The weights of...

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