Data Analysis OL 20 questions

What is the range?

• The average

• The number in the middle

• The largest number minus the smallest number

• The number that appears most often

To find the mean or average of a set of numbers, add up all the items and divide by...

• 2.

• The smallest number

• The largest number

• The number of items in the set.

What is the median?

• Put the numbers in order, and subtract.

• The greatest number minus the least number

• Put the number in order and find the middle.

• The number that appears most often.

When you are trying to find the MEDIAN of a set of data and 2 numbers are left in the middle after putting them in order from least to greatest, what do you do?

• List both of the numbers as the Median.
• Add the two numbers together and divide by 2.
• Pick the one that you want.
• Subtract the two numbers.

What is the mode?

• # happening the most
• the average
• biggest - smallest
• the middle #

A data set can have more than one mode

• True
• False

A set of data can have "no mode"

• True

• False

My median will be one of the numbers in my data set.

• True - always

• False - not always

Given 111, 144, 500, and 223, what is the range of these numbers?

• 112

• 102

• 389

• 399

The median of 3, 1, 6, 8

(Hint: must put in order)

• 3.5

• 4.5

• 5.5

• 6.5