| Question | Answer |
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 What is the mean of the number of guitars sold in a given year? | 16
|
# Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 What is the mode of the number of guitars sold in a given year? | 15
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 What is the median of the number of guitars sold in a given year? | 16
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 What is the variance of Jesse’s data (one decimal place)? | 22.8
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 What is the standard deviation of Jesse’s data (one decimal place)? | 4.8
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 If an outlier is defined as any value that is more than two standard deviations from the mean, which, if any, values in Jesse’s data would be considered an outlier? | None
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 What is the range for the given information? | 16
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 Draw a bell curve with labels to show the empirical rule used in real-life situations. | N/A
| What do you call data that is taken from a specific group that will skew the data one way due to upbringing, prejudice, or own personal views? | bias
| What is a type of sample taken where you take every nth person? | systematic
| What is a type of sample taken where you take the information in no particular order? | random
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 Find IQR of the following data. | 8
| Explain the empirical rule. | 68%,95%,99%
| Triple the Points: The sample means for each shop are as follows: Shop 1: {21.25, 15.25, 25.0, 15.0, 14.0, 18.0, 12.25, 19.25, 22.0, 21.25}Shop 2: {17.5, 18.25, 8.0, 22.25, 7.75, 18.25, 24.0, 28.5, 16.0, 16.25}What shop should stay open based on this sample? Why? Find the standard deviation of each. | for the samples for Store 1, the mean is 18.325 and the corrected standard deviation is 4.11;for the samples for Store 2, the mean is 17.675 and the corrected standard deviation is 6.46 (Store 1)
| Define outlier. | Data that is away from the other data. (Two standard deviations)
| What is the population and sample of the following question? Survey PHS to figure out what types of phones teenagers are buying in 2012. | P-All Teenagers;S-PHS
| # Iphones Sold 22 10 20 12 10 8 24 21 33 21 21 12 Draw a box and whisker and stem and leaf for the information provided. | N/A
| Explain linear regression related with the activity in class. | Something concerning one thing depending on the other. We realized students who had longer legs tended to jump farther. |
