Each division on the geologic time scale represents an equal chunk of time, of 500 million years.

For each variable listed below indicate the most appropriate measure of variability to use to characterize the variable: Height (measured in inches): [Height] Ethnicity: [Ethnicity] Happiness (measured on a 1-10 scale, from 1 = least happy to 10 = most happy): [Happiness]

An erosional surface that separates sedimentary strata that are parallel with one another is called a(n) ____.

Use the stem-and-leaf plot below to identify the following:  **Report all answers as a whole number (e.g. 10). Maximum score: [max] The number of people that reported they were 61 inches tall: [61] The mode: [mode] The number of people 69 inches tall or more: [69]  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)

Which of the following was not among the early attempts to determine Earth’s age?

You need to purchase both a computer and a television. You find both items on a super-one-time-only sale, but only have enough money to purchase one. You need to figure out which is the better deal. The computer costs $570. The average cost for this computer at all the stores you’ve looked at is $699, with a standard deviation of $30. The television costs $460, with an average cost normally of $580, with a standard deviation of $25. Based on these numbers which item is the better deal? Use data to support your answer.

For each variable listed below, indicate if the variable is nominal, ordinal, interval, or ratio.  Type of exercise class (with the values 1 = beginning, 2 = intermediate, 3 = advanced) [class] Number of correct answers on a 10-question quiz. [quiz] Time on task measured with the following scale: 0-10 minutes, 11-20 minutes, 21-30 minutes, 31-40 minutes, 41-50 minutes [activity] Study preference (1= no music, 2 = music) [music]

Use the scores below to calculate the mean. **Report your answer to 4 decimal places. [a], [b], [c], [d], [f], [g], [h]

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 1 [f] The relative frequency for a score of 1 [rf] The cumulative frequency for a score of 1 [cf] The cumulative relative frequency for the score of 1 [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.

You need to purchase both a computer and a television. You find both items on a super-one-time-only sale, but only have enough money to purchase one. You need to figure out which is the better deal. The computer costs $300. The average cost for this computer at all the stores you’ve looked at is $699, with a standard deviation of $35. The television costs $275, with an average cost normally of $589, with a standard deviation of $25. Based on these numbers which item is the better deal? Use data to support your answer.