Distribution
Variability
Center
Standard Deviation
Misc.
100
What shape is the distribution of the property sales below?
The distribution is positively(right) skewed
100
On the final week or recording your hours studied, you also record the amount of sleep you received
5, 5, 2, 7, 8, 9, 6
What is the IQR of your sleep? Report to the nearest whole number and don't include units.
3
100
What is the median number of movies watched?
5
100
The following data points are the number of words that 5 students found in a word search puzzle.
18, 16, 15, 15, 16
Find the standard deviation of the data set.
1.22
100
How do you make the number 7 even without addition, subtraction, multiplication, or division?
Take out the s
200
Describe the following distribution
Uniform
200
You have found the following ages (in years) of 4 zebras. The zebras are randomly selected from the 45 zerbras at your local zoo:
7, 1, 9, 14
What is the standard of deviation of the zebras?
5.377 years
200
What measure of center should you use to compare distributions when the distributions are both normally distributed?
Mean
200
The following data points are the number of lemons that grew on Mary's 5 lemon trees last year.
12, 14, 5, 13, 11
Find the standard deviation of the data set
3.54
200
Turn me on my side and I am everything. Cut me in half and I am nothing. What am I?
8
300
Describe the following distribution
Skewed right, bimodal
300
You have found the following ages (in years) of 4 zebras. The zebras are randomly selected from the 45 zerbras at your local zoo:
7, 1, 9, 14
What is the IQR of the zebras?
7.5
300
The distribution of body weights had a mean of 202.3 pounds and a median of 210.0 pounds. Which of the following is true about the distribution of body weights?
Half of the people weighed less than 202.3.
A majority of the people weighed less than 202.3 pounds
The weights of the lemurs were symmetric.
Half of the pepole weighed 210 pounds.
Half of the people weighed less than 202.3 pounds
300
We want to measure the variability in the heart rate of a student. For five days, we measured Becky's heart rate
65, 48, 72, 75, 50
What is the standard deviation of these measurements? Report to 2 decimal places.
12.43
300
Which graph(s) would be appropriate to display the distribution of weight?
Histogram, boxplot
400
How would you describe the following distribution
Skewed left, multi modal
400
You have found the following ages (in years) of all 4 tigers at your local zoo:
22, 13, 18, 16
What is the standard deviation of the tigers at your zoo?
3.77
400
What is the median of the list of numbers?
3.19, 3.49, 3.79, 3.89, 3.99, 4.19
3.84
400
Suppose the "Weight" variable has a standard deviation of 2.9 pounds. If we added 3 pounds to every value in the dataset, what would the new standard deviation be? Round to 1 decimal place and don't include units.
2.9
400
Which graph would be appropriate to display the distribution of Age?
Boxplot
Bar Graph
Pie Chart
All of these
Boxplot
500
Describe the shape of the graph below
There is no shape, this is categorical.
500
You have found the following ages (in years) of all 4 tigers at your local zoo:
22, 13, 18, 16
What is the IQR of the tigers at your zoo?
5.5
500
What is the mean, median and mode of the following data:
2, 5, 6, 7, 7, 10
mean: 6.17
median: 6.5
mode: 7
500
Suppose the distribution of the ages of people is approximately normal, centered around an age of 25 years. If we updated the age of the person assigned ID=5 to 52 years old instead fo the value in the table, how would this change impact the appropriate measures of center and spread used to describe the distribution of "age"?
52 would be an outlier that is greater than the center. This would cause a skew to the right making the mean to now be greater than the median and we would have to change from a using a spread of standard deviation to IQR. The spread would get largers due to the outlier.
500
What question could be answered by making a graph of the distribution of the Salary?
Is the "Salary" variable normally distributed?
What is the average Salary in the dataset?
What is the most frequent Salary in the dataset?
Do people of different Salaries weigh the same?
Is the "Salary" variable normally distributed?