ANSWER FILL IN BLANK

1. If you are looking at a distribution with a positive skew the _________ will be the largest value.

2. What is N for the following data set? 4, 7, 9, 12, 15, 21, 25, 27, 29, 35, 35, 37, 40

3.A researcher was interested in the self-esteem scores of college freshmen versus those of college seniors. Data collected through surveys indicate that college freshmen had a mean self-esteem score of 6 with a variance of 0.5 whereas college seniors had a mean self-esteem score of 5 with a variance of 2. Which of the following statements best describes this situation?

a.College freshmen generally have higher self-esteem than college seniors. College freshmen have less variability among their self-esteem scores while there is more variation in the self-esteem scores of college seniors

b.College freshmen generally have higher self-esteem than college seniors.

c.College freshmen and college seniors have the same self-esteem scores on average.

d.College freshmen generally have higher self-esteem than college seniors. College seniors have less variability among their self-esteem scores while there is more variation in the self-esteem scores of college freshmen

4.Which numbers are the outliers in this data set? 100, 101, 101, 102, 11, 103, 192

a.11 and 192

b.100 and 102

c.100, 101, 102, 11, 103, 192

d.There are no outliers

5.The standard deviation can be calculated by adding up the sum of the squared deviations around the mean, then dividing this number by how many you have, and then finally, by taking the square-root. This is an example of a:computational formula

b.definitional formula

6.The standard deviation is found by ___________ the variance.

a.taking the square root of

b.multiplying the sum of squares by

c.squaring

d.dividing the sum of squares by

7.In a _________ distribution, the median, mode and the mean are all equal.

a.positively skewed

b.normal

c.left skewed

d.negatively skewed

8.The following data set is the exam scores distribution for sociology course: 21, 34, 87, 88, 89, 93, 93, 96, 93, 94, 94, 95, 94, 94, 99, 95, 100. Which measure of central tendency would be least useful in describing this data set?

a.Mode

b.Variance

c.Mean

d.Median

9.If the variance is 64, what is the standard deviation?

a.8

b.5

c.4096

d.0

10. Consider this data set: 7, 9, 7, 6, 6, 6, 11, 3, 11, 2, 1

What is the median?

Group of answer choices

a.6

b.6.25

c.6.75

d.6.5

11.The median is also known as the 50^th percentile. This means that:

a.it is the lowest of all of the scores

b.half of the scores are above it and half are below it

c.it is the highest of all of the scores

d.it is always the most common score

12.Which statement is true for the following data set? 3, 5, 5, 5, 7, 7

a.The mode is greater than the median (simple)

b.The median is greater than the mean

c.The mean is greater than the mode and median

d.The mean is less than the mode

13. FILL IN THE BLANK

A researcher surveys eight high school students about the number of homework assignments they have each week. The answers are as follows: 9, 4, 6, 2, 5, 3, 6, 3. What is the mean number of homework assignments for this group of high school students? (Round to two decimal places)

ANSWER: ________

14.Which of the following statements is true?

a.The median is always one of the scores in the distribution

b.The mean is always one of the scores in the distribution

c.The mode is always one of the scores in the distribution

d.The mean and the median is always the same

15.A distribution in which the mean is greater than both the mode and median is:

a.symmetric

b.skewed to the left

c.negatively skewed

d.positively skewed