Class Interval
The range of each group of data.
Example: you measure the length of leaves on a rose bush. Some are less than 1 cm, and the longest is 9 cm. You then put the lengths into groups.
A class interval of 2 cm has these groups:
• 0 cm to just below 2 cm,
• 2 cm to just below 4 cm,
• 4 cm to just below 6 cm,
• 6 cm to just below 8 cm,
• 8 cm to 10 cm.
But a class interval of 5 cm has these groups:
• 0 cm to just below 5 cm,
• 5 cm to 10 cm.
- decade
- decagon
- decahedron
- deci-
- decimal
- decimal fraction
- decimal number
- decimal number system
- decimal point
- decompose
- decrease
- deduct
- deductible
- definite integral
- degree (accuracy)
- degree (algebra)
- degree (angles)
- degree (temperature)
- denominator
- density
- dependent event
- dependent variable
- deposit
- depth
- derivative