Have an account?
Skip to Content
Build your own quiz
Suggestions for you
.png)
35 questions
Show Answers
See Preview
- 1. Multiple ChoiceWhat is Chebyshev's Inequality?P≥1-1/(k2)P≥1+1/(k2)P≤1-1/(k2)P≤1+1/(k2)
- 2. Multiple ChoiceWhat percent of the data in any data set lies within 7.5 standard deviations of the mean?98.2%86.7%2.2%13.3%
- 3. Multiple ChoiceIn any data set with 230 data points, what is the minimum number that must lie within 7 standard deviations of the mean?22640204153
- 4. Multiple ChoiceIn a data set with a mean of 24 and a standard deviation of 3, at least 75% of data points must lie between ________ and ________ [S.A.M.]18 and 3023.25 and 24.7521 and 2721.25 and 29.75
- 5. Multiple ChoiceTrue or False: The percentages obtained by Chebyshev's Theorem are conservative lower estimates. The percent of data between any two boundaries is usually much more than the number given by the Theorem.TrueFalse
- 6. Multiple Choice
True or False: When finding the minimum number of data points between any two boundaries using Chebyshev's Theorem, if a decimal is obtained, you should round that decimal to the nearest integer.
True
False
- 7. Multiple Choice
The set of the weights of professional football players was found to have a mean of 275 lbs. with a standard deviation of 15 lbs. If there are a total of 1,650 pro football players in the US, what is the minimum number that weigh between 250 and 300 lbs.?1,0561,603952879 - 8. Multiple ChoiceThe mean age of a dinosaur fossil in a particular fossil bed is 85 million years. The standard deviation of the fossil ages from this bed is 1.5 million years. At least __________ of fossils in this bed are between 80 and 90 million years old.91%76.7%99.3%70%
- 9. Multiple Choice
Scientists measured the area claimed by each Bengal tiger in a certain jungle. The mean area claimed was 30 square miles with s=2.8 mi2. At least 99% of the areas in this sample would have to be between _________________ mi2 [S.A.M.]
2 and 5827.2 and 32.820 and 4017.2 and 42.8 - 10. Multiple ChoiceReview: Which of the following data displays is appropriate for univariate quantitative data?OgiveBar graphScatter plotPie chart
- 11. Multiple ChoiceReview: In a survey, 15 out of 45 people were Steelers fans. If you were to make a pie chart out of the results of this survey, the slice for the Steelers would have an angle of...120o133o150o145o
- 12. Multiple ChoiceWhat does S.A.M. stand for in statistics?Symmetric around the meanSurface to air missileSymmetric around the medianSymmetric around the mode
- 13. Multiple ChoiceWhat does the "k" in Chebyshev's Theorem represent?Standard deviationThe number of standard deviations from the meanVarianceThe number of standard deviations from the median
- 14. Multiple ChoiceWith each hop, how far does the bunny hop?k unitsOne standard deviationOne unitAs far as it wants to
- 15. Multiple ChoiceWhat percent of the data in any data set must lie within 12 standard deviations of the mean?99.3%91.7%11%89%
- 16. Multiple ChoiceA data set has a mean of 50 and a standard deviation of 3.6. At least 80% of the data must lie between... [S.A.M.]41.95 and 58.0532 and 6846.42 and 53.5846.4 and 53.6
- 17. Multiple Choice
In a data set with a mean of 25 and a standard deviation of 4.8, what is the minimum percent of the data that must lie between 20 and 30? [Round to the nearest percent.]
8%
4%
96%
88%
- 18. Multiple Choice
400 books were selected at random from a library. If the mean length of books in this sample was 300 pages with s=20, what is the minimum number of books that must be between 200 and 400 pages?
384
396
375
214
- 19. Multiple Choice
800 basketball players were selected at random. If their mean height was 78 in. with s=5, at least 650 of these players must have been between...
[S.A.M.]
66.45 and 89.55 in. tall.
70.05 and 85.95 in. tall.
51.35 and 104.65 in. tall.
72.25 and 83.75 in. tall
- 20. Multiple ChoiceIn any data set, at least 60% of the data is within _______ standard deviations of the mean.1.582.56.250.4
- 21. Multiple ChoiceWhat is the correct expression used to find the boundaries in a Chebyshev's Theorem problem?mean ± k(s.d.)k ± mean(s.d.)(s.d) ± k(mean)(s.d) ± k2(mean)
- 22. Multiple ChoiceA data set has 2,800 data points. What is the maximum number of data points in this set that could be more than six standard deviations away from the mean?2,3332,72346777
- 23. Multiple ChoiceA data set has a size of 200, a mean of 90 and a standard deviation of 5. What is the minimum number of data points that must lie between 80 and 100?150192118158
- 24. Multiple ChoiceLess than one out of a thousand data points in any set can be more than ______ standard deviations away from the mean1031.610015.8
- 25. Multiple ChoiceReview: What is the median of the following data set:
{1, 3, 4, 4, 5, 6, 7}1457 - 26. Multiple ChoiceReview: Based on the dot plot, what is the skew of the data set represented?LeftRightSymmetric, but not UniformUniform
- 27. Multiple ChoiceReview: Which type of set below would consist of nominal data?AgeHeightNumber of cousinsFavorite singer
- 28. Multiple ChoiceReview: What is the name of this data display?HistogramTime SeriesScatter PlotFrequency Polygon
- 29. Multiple ChoiceReview: How many modes does the set represented by this data display have?0231
- 30. Multiple Choice
A data set has 5,800 data points. At least 4,000 of these points must lie within how many standard deviations of the mean?
1.80
3.24
0.69
9.88
- 31. Multiple Choice
A data set with a mean of 11 and s=0.6 has 724 data points. At least how many of these data points must be between 10 and 12?
464
528
290
430
- 32. Multiple Choice
A data set with 800 data points has a mean of 33 and a standard deviation of 1.5. At least 700 of these data points must lie between what two boundaries, S.A.M.?
28.76 and 37.24
21 and 45
89.10 and 97.58
31.69 and 34.31
- 33. Multiple Choice
- 34. Multiple Choice
True or False: Chebyshev's Theorem can only be used with boundaries that are symmetric around the mean
True
False
- 35. Multiple Choice
True or False: It takes the same number of "hops" for the bunny to get to either boundary.
True
False
- Answer choicesTagsAnswer choicesTags