Mean, Median, and Mode Notes

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Range: The ____________ between the _________ and _________ _________ in a set of _________.

difference, greatest, least, numbers, data

Mode: The number that appears most ________ in a ____ of numbers, there may be _____, _______ than _____, or _____.

frequently, set, one, more, one, none

Extreme Values: Values that are much _________ or mean _______ than the _______ of the date

greater, less, rest

Mean= What divided by what?

sum of values divided by number of values

Mean: The ________ of a _______ of numbers _______ by a __________ of __________ in the set, often referred to as ________.

sum, set, divided, number, elements, average

What would use if there are no big gaps in the middle of the data?

Median

What would you use if the data have extreme values?

Median

The number that appears most frequently in a set of numbers, there may be one, more than one, or none.

Mode

What would you do if the data have many repeated numbers?

Mode

Values that are much greater or mean less than the rest of the date

Extreme Values

Outlier: __________ __________ in a _______ of numbers; a _________ that is ________ _________ or _______ _______ than the other __________.

Extreme values, set, value, much larger, much smaller, numbers

When would you use mode?

If the data have many repeated numbers.

The sum of a set of numbers divided by a number of elements in the set, often referred to as average.

Mean

What would you use when the data have no extreme values (values that are much greater or mean less than the rest of the data?

Mean

What are the measures of central tendency?

Mean, Median, and Mode

The middle of a set of numbers when the numbers are arranged in order from least to greatest; if there is an odd number of terms it is the middle term; if there is an even number of terms, it is the mean (average) of the two middle terms.

Median

Extreme values in a set of numbers; a number that is much larger or much smaller than the other number.

Outlier

The difference between the greatest and least values in a set of data.

Range

When would you use Median?

The data have extreme values. There are no big gaps in the middle of the data.

When is mean the most useful?

When the data have no extreme values (values that are much greater or mean less than the rest of the date.

Median: The ________ of a set of numbers when the numbers are ___________ in order from ________ to _______; if there is an ________ number of terms it is the _______ term; if there is an ________ number of terms, it is the _______ (average) of the ________ _______ terms.

middle, arranged, least, greatest, odd, middle, even, mean, two middle


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