Measures of center and spread
Five number summary
The normal Distribution
100
The average. Sum of all the values and divided by the number of values.
What is mean?
100
The smallest value for a set of values
What is minimum?
100
how stupid is todd
What is very stupid
200
The value that divides the data into halves.
What is median?
200
The median of the lower half or the ordered set of values
What is Lower Quartile
200
True or False: The number of standard deviations that a given x-value lies above or below the mean is the z-score?
What is TRUE
300
What is the mean of the list of numbers. 1,2,297 a. 200 b. 100 c.25
What is B
300
The largest value for a set of values
What is maximum
300
What is the correct formula for computing the z-score? a) z=x-mean/SD b) z=mean-x/SD c)z=SD
What is A.
400
The distance between the upper and lower quartiles (Q3-Q1)
What is interquartile range
400
The median of the upper half of the ordered set of values
What is upper quartile
400
TRUE OR FALSE. The standard deviation is a measure of the spread of scores within a set of data.
What is True
500
A value that is more than 1.5 times the IQR from the nearest quartile
What is an outlier
500
The value that divides the ordered set of values into halves
What is median quartile
500
Can you estimate the population standard deviation from a sample standard deviation?
What is YES, they are calculated differently
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