Standard Deviation Quiz! Trivia Test
8 Questions
| Total Attempts: 1422
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Questions and Answers
- 1.The number of calories in a 1-ounce serving of ten popular breakfast cereals is given asApple Jacks 110Froot Loops 110Life 105Rice Krispies 118Cap0n Crunch 116Kellog0s Corn Flakes 102Lucky Charms 101Trix 110Cheerios 104Kellog0s Raisin Bran 88What is the range?
- A.
10
- B.
20
- C.
30
- D.
40
- 2.The number of calories in a 1-ounce serving of ten popular breakfast cereals is given asApple Jacks 110Froot Loops 110Life 105Rice Krispies 118Cap0n Crunch 116Kellog0s Corn Flakes 102Lucky Charms 101Trix 110Cheerios 104Kellog0s Raisin Bran 88What is the mean?
- A.
106.4
- B.
103.5
- C.
99.8
- D.
110.6
- 3.The number of calories in a 1-ounce serving of ten popular breakfast cereals is given asApple Jacks 110Froot Loops 110Life 105Rice Krispies 118Cap0n Crunch 116Kellog0s Corn Flakes 102Lucky Charms 101Trix 110Cheerios 104Kellog0s Raisin Bran 88What is the standard deviation?
- A.
5.67
- B.
9.02
- C.
7.49
- D.
8.13
- 4.The duration of a heart operation is a normally distributed random variable with mean 170 minutes and standard deviation 14 minutes. What percentage of operations last between 142-198 minutes?
- A.
68%
- B.
95%
- C.
99%
- D.
100%
- 5.A company that manufactures hydraulic couplers takes ten samples from one machine and ten samples from another machine. The diameter of each sample is measured with a micrometer caliper. The Company’s goal is to produce couplers that have a diameter of exactly 1 inch. The results of the measurements are given belowMachine 1:1.008, 1.007, 1.005, 1.01, 1.011.007, 1.001, 1.006, 1.003, 1.005Machine 2:1.008, 1.002, 1.002, 1.004, 1.0021.002, 1.007, 1.005, 1.001, 1.003Which statement about the mean values of the machines is true?
- A.
The mean value for machine 1 is smaller than the mean value for machine 2
- B.
The mean values of the two machines are the same
- C.
The mean value for machine 1 is larger than the mean value for machine 2
- 6.A company that manufactures hydraulic couplers takes ten samples from one machine and ten samples from another machine. The diameter of each sample is measured with a micrometer caliper. The Company’s goal is to produce couplers that have a diameter of exactly 1 inch. The results of the measurements are given below Machine 1: 1.008, 1.007, 1.005, 1.01, 1.01 1.007, 1.001, 1.006, 1.003, 1.005 Machine 2: 1.008, 1.002, 1.002, 1.004, 1.002 1.002, 1.007, 1.005, 1.001, 1.003 Which statement about the standard deviations of the machine is true?
- A.
The standard deviation of machine 1 is larger than the standard deviation of machine 2
- B.
The standard deviation of machine 1 is smaller than the standard deviation of machine 2
- C.
The standard deviations are the same
- 7.Given the following data:6, 30, 12, 18, 3What is the mean?
- A.
12.2
- B.
13.8
- C.
14.5
- D.
11.3
- 8.Given the following data: 6, 30, 12, 18, 3 What is the standard deviation?
- A.
8.7
- B.
9.3
- C.
9.6
- D.
9.9
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