This measure of center is more resistant to outliers than the mean.
What is the median?
100
observed y - predicted y
What is the residual?
100
This is the type
What is statistically significant?
100
This is the percent of data more than two standard deviations under the mean, when the data is normally distributed.
What is 2.28%?
100
This type of question is generally considered to be unfit for surveys, since it results in undercoverage due to eliciting a specific response.
What is a leading question?
200
To calculate, subtract the mean of the distribution from the observed x, then divide by the standard deviation.
What is the z-score (or standardized value)?
200
Measures the direction and strength of a linear relationship between two quantitative variables.
What is correlation (or r)?
200
randInt(1,9,3)
What is the calculator command for generating 3 random numbers from 1 to 9?
200
This is the percent of data that lies between a z-score of -1.5 and a z-score of 2.0.
What is 91.04%?
200
This is a type of random sampling used when you want to test quality in an assembly line.
Hint: Not the same as systematic random sampling.
What is Sequential Sampling?
300
This rule helps to determine if data is normally distributed by checking the number of observations within each interval.
What is the 68-95-99.7 rule?
300
This is how you find the line of best fit on a TI-83+/84
What is: entering the data into a list, followed by pressing STAT, CALC, LinReg(ax+b)?
300
This experimental design involves the random assignment of units to treatments which are carried out separately within each group of units known to be similar in some way that is expected to affect the responses.
What is block design?
300
Drivers in I-270 are going at a rate of 55mph, with a standard deviation of 5mph. This is the probability that a driver is going more than 60mph.
What is .1587?
300
This is the type of sampling:
"Jacqueline asks the people at her lunch table what their favorite movie of the year was."
What is Convenience Sampling?
400
The square of the standard deviation.
What is the variance?
400
These are the components of a 5-number summary.
What are the minimum, 1st quartile, median, 3rd quartile, and maximum?
400
The 3 basic principles of experimental design.
What are control, randomize, and replicate?
400
This type of distribution requires both p times n, and (1-p) times n, to be greater than 5, where p is the probability of a success, and n is the sample size.
What is a normal approximation to a binomial distribution?
400
The type of bias present in the following question:
"How much did you study for tomorrow's exam?"
What is social desirability bias?
500
This theorem approximates the area within a chosen number of standard deviations from the mean, without needing to know the shape of the distribution.
What is Chebyshev's Theorem?
500
This is the variance of 1, 5, 6, 9, and 10.
What is 12.7?
500
The five steps of a simulation.
What are state/describe the problem, state assumptions, assign digits, simulate repetition, and state the conclusion?
500
Assume the life of a cheap light bulb is normally distributed, with mean of 200 days and standard deviation 1 day. This is the probability that a bulb will die sometime during the 200th day.
What is .3830?
500
This type of sample is usually used when you want to study a particular characteristic.