Question
i. In a uniform probability distribution, P(x) is constant between the distribution's minimum and maximum values. ii. For a uniform probability distribution, the probability of
i. In a uniform probability distribution, P(x) is constant between the distribution's minimum and maximum values. ii. For a uniform probability distribution, the probability of any event is equal to 1/(b-a). iii. The uniform probability distribution is symmetric about the mode.
Multiple Choice
- (i), (ii), and (iii) are all correct statements.
- (i) and (iii) are correct statements but not (ii).
- (ii) and (iii) are correct statements but not (i).
- (i), (ii), and (iii) are all false statements.
- (i) is a correct statement but not (ii) or (iii).
The average score of 100 students taking a statistics final was 70 with a standard deviation of 7. Assuming a normal distribution, approximately how many scored less than 60?
Multiple Choice
- 0.0764
- 0.3729
- 0.8929
- 0.2271
The printout below is a summary of the average annual earnings of male full time workers in Canada from 1999-2008. Determine the coefficient of variation.
Women's Earnings 1999-2008 | |
count | 10 |
mean | 28,320.00 |
sample variance | 1,152,888.89 |
sample standard deviation | 1,073.73 |
minimum | 27000 |
maximum | 30200 |
range | 3200 |
Multiple Choice
- 4.25%
- 2.5%
- 1.0%
- 3.8%
- 3%
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