Sampling methods
People are asked to phone in their response to a survey question
Convenience
Categories of magazines in a doctor's office
nominal
Find the median of the following: 1, 2, 3, 4, 5, 6
3.5
The symbol for population standard deviation
sigma
The average time it takes to get a pizza delivered to a home is 30 minutes. If the standard deviation is 4 minutes, find the z-score for 12 minutes
-4.5
A group of unmarried men are selected using random numbers and asked how long it has been since their last date.
Simple random
Temperatures of 10 toasters
interval
Find the mode of the following: 1, 1.1, 1.11, 1.1, 1.111, 1.111, 1.1, 1.11, 1, 1, 1.1, 1.11, 1
1, 1.1
Find the range of the following: 213, 498, 321, 478, 852, 652, 741, 101, 98, 454, 214, 99
754
Find the data value for the given z-score if the standard deviation is 5 and the mean is 65: 2.1
75.5
Every 100th hamburger manufactured is checked to determine its fat content.
Systematic
Salaries of coaches in the NFL
ratio
Find the mean of the following: 2.3, 3.2, -2.03, 3.3, -2.3, -3.2, 3.3, 2.2, -8.8, 3.02
.099
Find the standard deviation of the following: 1.2, 2.1, 21, 1.22, 2.2, 1.22, 2.11, 1.11, 2.111
6.4644
The number of vetoes issued by 10 selected Presidents is given: 2, 7, 1, 4, 5, 8, 48, 110, 25, 12. Find the IQR.
A sample of Saginaw county voters to see which is their favorite vacation destination
cluster
The amount of light-years a planet is from the center of it's galaxy
ratio
Find the missing data value in the set given the mean: 17, 25, 38, 45, x, 15, 68, 32, 12, 1 with a mean of 32.3
70
Find the variance of the following: 7, 9, 11, 13, 31, 11, 10, 13, 15, 17, 20, 7
44.89
The mean of a distribution is 80 with a standard deviation of 10. Using Chebyshev's Theorem, at least what percentage of values will fall between 65 and 95?
55.6%