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The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be: (a) 10 (b) 1.1
The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be: (a) 10 (b) 1.1 (c) 10.1 (d) 11 a 11 b 1.1 ooOO C 10.1 d 10When all the values in a series occur equal number of times, then it is not possible to calculate the: (a) Arithmetic mean (b) Geometric mean (c) Harmonic mean (d) Weighted mean O a Geometric mean O b Harmonic mean O c Arithmetic mean O d Weighted meanRank the following measures from least affected by outliers to most affected by outliers. a) mean, median, range b) median, mean, range c) range, median, mean d) median, range, mean a mean, median, range b range, median, mean OOOO C . median, range, mean d median, mean, rangeThe fine print on an instant lottery ticket claims that one in nine tickets win a prize. What is the probability that you win at least once if you purchase five tickets? a) 0. 4451 b) 0. 7919 C) 0. 1778 d) 0.5549 O a 0.7919 Ob 0.1778 O C 0.5549 O d 0.4451The sum of the squares of the deviations from the mean is: (a) Zero (b) Maximum (c) Minimum (d) One a Maximum b Zero OOOO C Minimum d OneThe fine print on an instant lottery ticket claims that one in nine tickets win a prize. What is the approximate probability that you win more than 120 times if you purchase 900 tickets? a) 0. 5310 b) 0. 2408 c) 0. 0150 d) 0. 0012 O a 0.0150 Ob 0.0012 O C 0.5310 O 0.2408A dataset is NOT bell-shaped (normal distribution) is indicated by: a. The range is equal to 5 times standard deviation. b. The range is larger than the interquartile range. c. The mean is much smaller than the median. d. There are no outliers O a The range is equal to 5 times standard deviation Ob There are no outliers OC The range is larger than the interquartile range Od The mean is much smaller than the medianThe Arithmetic Mean of 10 items is 4 and the Arithmetic Mean of 5 items is 10. The combined Arithmetic mean is: (a) 4 (b) 5 (c) 6 (d) 90 a b OOOO C d 90A sample of 1,000 Surrey BC homes is selected and several variables are recorded. Which of the following statements is correct? a) Total household income (in dollars) is interval level data. b) Socioeconomic status (recorded as "low income", "middle income", or "high income" is nominal level data. c) The number of people living in a household is a discrete variable. d) The primary language spoken in the household is ordinal level data. O a Socioeconomic status (recorded as "low income", "middle income", or "high income" is nominal level dat Ob The primary language spoken in the household is ordinal level data. O C The number of people living in a household is a discrete variable O d Total household income (in dollars) is interval level data
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