Data & Probability · grades 6–8

Data & Probability.

Make sense of numbers — mean, median, mode & range, reading tables and charts, and measuring how likely things are. With a live bar chart and an engine-graded pad.

Measures of center

Mean, median, mode, range.

1.1
Mean (average)
Add, then divide.
1.2
Median (middle)
Order, then middle.
1.3
Mode (most common)
The value that repeats.
1.4
Range (spread)
Highest minus lowest.

Working with data

Tables & comparisons.

2.1
Find a missing value
Work back from the mean.
2.2
Frequency tables
Read and total counts.
2.3
Compare data sets
Whose mean is higher?

Probability

How likely?

3.1
Simple probability
Favorable over total.
3.2
Fractions, decimals, percents
Three ways to say it.
3.3
Complement (P of not)
Everything that isn’t.
3.4
How likely?
Impossible to certain.

Apply

Real data & chance.

4.1
Which average?
Mean, median, or mode.
4.2
Averages in real life
Scores, prices, temperatures.
4.3
Probability in real life
Spinners, draws, chances.

Capstone

Data & probability together.

C1
Data & chance
Everything together.

Data & Probability.

Measures of center

Mean (average)

Median (middle)

Mode (most common)

Range (spread)

Working with data

Find a missing value

Frequency tables

Compare data sets

Probability

Simple probability

Fractions, decimals, percents

Complement (P of not)

How likely?

Apply

Which average?

Averages in real life

Probability in real life

Capstone

Data & chance