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What is the middle value or average of the two middle values in a data set?
The middle value in a data set is the median. If there are an even number of values in the set, you average the middle two values to get the median.
What is the lowest value in a data set called?
The minimum.
What is the term for the value in a data set which separates one fourth of the data from the rest?
Quartile
A data value that is much higher or lower than the other data in a set is called what?
it is called an outlier
What is median in the set of data?
The median in a set of data, would be the middle item of the data string... such as: 1,2,3,4,5,6,7 the Median of this set of data would be: 4
Must the third quartile of a data set be less than the maximum value?
No. Not if 25% of the data set are all at the maximum value.
Since the median is the middle value of a data set it must always be?
Not an extreme value.
Can Coefficient of variation of a set of data to be zero?
Yes, if there is no variation: all the data have to have the same value and that value must be non-zero.
When can the mean be the largest value in the data set?
When the data set consistys of a single value.
What is the minimum data value in a data set?
The minimum data value in a data set is simply the lowest value of the set (easily found by arranging the set from lowest-highest values in an excel sheet or by hand).
Calculated by subtracting the smallest value in the data set from the largest value in the data set?
The range is the size of the set of data. Take the smallest from the largest value to get the range
What is calculated by subtracting the smallest value in the data set from the largest value in the data set?
Range
The range of a set of data is 48 If the lowest value in the data set is 2 what is the highest value?
50
What is it called when you calculate by subtracting the smallest value in the data set from the largest value in the data set?
The range.
What is the least value of the data set?
The least value of the data set is called the minimum.
What must you know about a data set before you can use the empirical rule?
The data set must be unbiased, the outcomes of the trials leading to the data set must be independent. The data set must be large enough to allow the Law of Large Numbers to be effective.
How do you determine the maximum value of your data set?
Arrange the values in your data set in increasing order. The last value is the maximum value. Example: Data set : 3,5,2,4,6 Arranged values : 2,3,4,5,6 Maximum value is 6.
