Have an account?
Skip to Content
Build your own quiz
Suggestions for you
10 questions
Show Answers
See Preview
- 1. Multiple Choice
A data set has a mean of 290 and a standard deviation of 20. Calculate the z-score for 265.
- 2. Multiple Choice
A data set has a mean of 20 and a standard deviation of 3. Calculate the z-score for 23.
- 3. Multiple Choice
A data set has a mean of 300 and a standard deviation of 40. What value would have a z-score of ?
298
296
220
380
- 4. Multiple Choice
Steve took his math test and scored an 88. If the class average was a 78 with a standard deviation of 5, what percent of students earned a grade that was higher than Steve's grade?
97.5%
93%
5%
2.5%
- 5. Multiple Choice
What does it mean to have a z-score of on a quiz?
It means you did better than zero people.
It means you scored the same grade as the average grade.
It means you earned a zero on the quiz.
It means the average score was a zero.
- 6. Multiple Choice
Use the image of the normal graph provided. What is the value of the mean?
6
34
52
70
- 7. Multiple Choice
Use the image of the normal graph provided. What is the value of the standard deviation?
6
12
36
18
- 8. Multiple Choice
Use the image of the normal graph provided. What percent of values are less than 46?
16%
84%
46%
12.5%
- 9. Multiple Choice
What percent of scores are below a z-score of ? (Use either the attached image of a z-table or use your own copy of the z-table from your notes)
15.87%
15.39%
9.68%
84.61%
- 10. Multiple Choice
What percent of scores are below a z-score of ? (Use either the attached image of a z-table or use your own copy of the z-table from your notes)
99.04%
0.96%
98.93%
97.68%
- Answer choicesTagsAnswer choicesTags