Instrumentation and Sensor Technologies - 2

What is the definition of the mean?

• The average
• The middle number
• The difference between the highest and lowest numbers
• The number that occurs the most

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

• 2
• The minimum
• The maximum
• The number of items

Find the mean of these numbers:
2, 57, 38, 42, 6

• 29
• 38
• 50
• 145

What is another word for AVERAGE?

• Mode

• Median

• Mean

• Not nice

When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2
• Write them both as the answer
• Give up
• Pick one

What is the median?

• biggest- smallest
• average
• the middle #
• # that happens the most

In order to find the median, the data must be sorted from least to greatest first.

• True
• False

A data set can have more than one median?

• True
• False

The median is the __________________ number (after you put them in order).

• first

• middle

• last

• one you see most

What is the mean for these numbers?
5,5,5,5

• 5
• 20
• 15
• 100