For each variable listed below indicate the most appropriate measure of central tendency to use to characterize the variable: Major in college: [Major] Age (measured in years): [Age] Starbuck’s coffee sizes (short = 8 oz; tall = 12 oz; grande = 16 oz; venti = 20 oz): [coffee]

For each variable listed below, indicate if the variable is nominal, ordinal, interval, or ratio.  Drink size (small = 8 oz, medium = 12 oz, large = 20 oz, extra large = 32 oz) [drink] Family size (number of people in a person’s family) [family] Preference for a digital or analog watch [watch] Time on task measured with the following values:  0-10 minutes, 11-20 minutes, 21-30 minutes, 31-40 minutes, 41-50 minutes. [activity]

If you wanted to create a graph for the variable age (measured in years) that showed the individual frequencies of each score and the shape of the distribution, but you were limited on space and were unable to include a frequency histogram, what graph would be most appropriate?

Suppose, you have a set of 10 reaction time scores that range from 20-30 seconds with a mean of 25 and a standard deviation of 2. Now suppose, you realize you forgot to add one score to the distribution and you actually have 11 reaction time scores. The score that you forgot was 5. What effect will the addition of the score of 5 have on the mean?

Use the scores below to find the mode. 5, 6, 9, 1, 5, 2, 8, 14, 1, 5

Use the stem-and-leaf plot below to identify the following: **Report all answers as a whole number (e.g. 10). Minimum score: [min] The number of people that reported they were 71 inches tall: [f] The mode: [mode] The number of people 70 inches tall or more: [70]  Frequency    Stem &  Leaf    10.00        6 .  0000011111    21.00        6 .  222222333333333333333    11.00        6 .  44445555555    13.00        6 .  6666677777777     9.00         6 .  888899999     4.00         7 .  0011     3.00         7 .  233 Stem width:     10.00 Each leaf:        1 case(s)

Use the scores below to find the mode. 5, 6, 9, 3, 2, 8, 16, 2

Construct a frequency distribution for the following scores: 5  3  3  2  4  3  4  3  3  5  4  1 Based on the frequency distribution, what is: The frequency for a score of 3 [f] The relative frequency for a score of 3 [rf] The cumulative frequency for a score of 3 [cf] The cumulative relative frequency for the score of 3 [crf] **To receive credit for this problem you will need to show your work. At the end of the exam you will be asked to upload a picture of your work.

Use the scores below to find the mode. 5, 6, 9, 3, 2, 8, 10, 8, 0

The four main types of volcanoes are: