Central Tendencies

Determine the mean of the data set:

[-1, 2, 7]

• 4

• -1

• 2

• 5

Determine the median of the data set:

[2, 3, 4, 6, 0, 9, 9]

• 9

• 0

• 4

• 5.6

Define mode:

• (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set.

• the middle number in a sorted, ascending or descending list of numbers

• the value that has a higher frequency in a given set of values.

• the difference between the lowest and highest values in a data set.

Define median:

• (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set.

• the middle number in a sorted, ascending or descending list of numbers

• the value that has a higher frequency in a given set of values.

• the difference between the lowest and highest values in a data set.

Define mean:

• (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set.

• the middle number in a sorted, ascending or descending list of numbers

• the value that has a higher frequency in a given set of values.

• the difference between the lowest and highest values in a data set.

Define range:

• (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set.

• the middle number in a sorted, ascending or descending list of numbers

• the value that has a higher frequency in a given set of values.

• the difference between the lowest and highest values in a data set.

What is the mode of the data set?

[-1, -1, 2, 0, 5, 5, 6, 8, -1, 9]

• -1

• 5

• 0

• 3.1

Determine the mean of the data set:

[0, 2, 0, 8, 10]

• 4

• 1

• 0

• 5

Determine the range of the data set:

[0, 2, 0, 8, 10]

• 4

• 5

• 0

• 10