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- 1. Multiple Choice
This table shows the average low temperature, in degrees Fahrenheit, recorded in Macon, GA and Charlotte, NC, over a six day period. Which conclusion can be drawn from the data?
The interquartile range of the temperature is the same for both cities.
The lower quartile for the temperatures in Macon is lower than the lower quartile for the temperatures in Charlotte.
The mean and median temperatures of Macon were higher than the mean and median temperatures of Charlotte.
The upper quartile for the temperatures in Charlotte was lower than the upper quartile for the temperatures in Macon.
- 2. Multiple Choice
A reading teacher recorded the number of pages read in any hour by each of her students. The numbers are shown below. For this data, which summary statistic is NOT correct?
44, 49, 39, 43, 50, 44, 45, 49, 51
The minimum is 39.
The lower quartile is 44.
The median is 45.
The maximum is 51.
- 3. Multiple Choice
A science teacher recorded the pulse rates for each of her students in her classes after the students had climbed a set of stairs. She displayed the results, by class, using the box plots shown. Which class had the highest pulse rates overall after climbing the stairs?
Class 1
Class 2
Class 3
Class 4
- 4. Multiple Choice
Peter went bowling Monday to Friday, two weeks in row. He only bowled one game each time he went. He kept track of his scores below.
Week 1: 70, 70, 70, 73, 75
Week 2: 72, 64, 73, 73, 75
Which is the BEST explanation of why Peter's Week 2 mean score was lower than his Week 1 mean score?
Peter received the same score three times in week 1.
Peter had one very low score in week 2.
Peter did not beat his high score from week 1 in week 2.
Peter has one very high score in week 1
- 5. Multiple Choice
This histogram shows the frequency distribution of duration times for 107 consecutive eruptions of the Old Faithful geyser. The duration of an eruption is the length of time, in minutes, from the beginning of the spewing water until it stops. What is the BEST description for this distribution?
bimodal
uniform
multiple outlier
skewed to the right
- 6. Multiple Choice
This table shows admission prices for various museums in the same city. Which is the mean absolute deviation for this set of data?
$1.26
$6.30
$10.05
$10.13
- 7. Multiple Choice
Which graph most clearly displays a set of data for which a linear function is the model of best fit?
- 8. Multiple Choice
This graph plots the number of wins in the 2006 and 2007 seasons for sample of professional football teams.
y = 1/2 x
y = 1/2 x + 8
y = 2x + 1
y = 2x -12
- 9. Multiple Choice
This graph plots the number of wins in the 2006 and 2007 seasons for a sample professional football teams. Based on the regression model, y = 1.1x - 2.29, what is the predicted number of 2007 wins for a team that won 5 games in 2006?
0
3
8
10
- 10. Multiple Choice
Which BEST describes the correlation of the two variables shown in the scatter plot?
weak positive
strong positive
weak negative
strong negative
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