Frequency Distribution, Measures of Central Tendency

What is the mode?

• The middle number in an ordered set of data.

• The difference between the greatest and least amount in the data set

• The value that occurs the most often in a data set

• The sum of all the numbers in a data set divided by the size

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• They are both the median

• Find the mean of the two numbers

• None of the above

What is the first step when looking at a data set?

• Find the mean

• Sort the data into categories

• Find the range

• Put the data in ascending order

The mean of the data set can be found by...

• finding the sum of the numbers and then dividing by the total amount of numbers in the data set

• subtracting the minimum from the maximum

• choosing the middle number

• choosing the number that occurs most

If you score 76, 85, 97, and 83 on your math tests for the unit, what would your median score be?

• 84

• 90

• 85

• 88

Find the mean of these numbers:

5, 11, 2, 12, 4, 2

• 2

• 6

• 4.5

• 5

Alfonso plays basketball on a team. He has played three games so far. In the first game, he scored 10 points. In the second game, he scored 16 points. In the third game, he scored 7 points. What is Alfonso's average points per game?

• 9 Points

• 10 Points

• 11 Points

What is an outlier?

• A value that is much less or much greater than the other values in a data set.
• The difference between the upper and lower quartiles of a data set.
• The mean of the distances from each data value in a set to the mean of a set.
• The difference between the greatest and least numbers in a data set.

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode of the number of donut holes per bag described in the sample below:
{12,10,10,10,13,12,11,13,10}

• 13
• 12
• 11
• 10

Based on the given data, which class has the highest frequency?

• 21-23

• 24-26

• 30-32

• 33-35