Understanding Mean from a Dot Plot

What is another term commonly used for the mean?

• Average

• Range

• Median

• Mode

How do you calculate the mean of a set of numbers?

• Find the middle value

• Subtract the smallest value from the largest

• Add all values and divide by the number of values

• Multiply all values together

What is the benefit of using a dot plot in calculating the sum of values?

• It shows the range of data

• It simplifies the addition process

• It helps in identifying the mode

• It makes the data look more organized

In the example, how many bike rides were recorded?

• 18

• 15

• 22

• 20

What is the sum of the bike ride distances in the example?

• 100

• 112

• 120

• 130

What is the mean of the bike ride distances before rounding?

• 6.1

• 6.2

• 6.3

• 6.4

What does a bar over a digit in a decimal number indicate?

• The digit is an estimate

• The digit repeats

• The digit is rounded

• The digit is incorrect

When rounding to the tenths place, what is the mean of the bike rides?

• 6.3

• 6.1

• 6.4

• 6.2

When rounding to the hundredths place, what is the mean of the bike rides?

• 6.23

• 6.22

• 6.21

• 6.20

What unit of measurement is used for the bike ride distances?

• Miles

• Kilometers

• Feet

• Meters