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Module 1: Creating a frequency table from data

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Family size cumulative frequency

Set your study reminders

We will email you at these times to remind you to study.
  • Monday

    -

    7am

    +

    Tuesday

    -

    7am

    +

    Wednesday

    -

    7am

    +

    Thursday

    -

    7am

    +

    Friday

    -

    7am

    +

    Saturday

    -

    7am

    +

    Sunday

    -

    7am

    +

XSIQ
*

Chance visible:hide; z-index:100;" id="overDiv"

Family size cumulative frequency

People who accumulate friends (or money) just keep adding more and more.
They add the new on to the old to obtain a running total.

We do the same in statistics to find cumulative frequency. Each data value
has a cumulative frequency. It is the total of the frequencies for all
values up to, and including, that value.

Cumulative frequency answers such questions as:

* How many students up to the age of 15 at a school? Count all 12, 13, 14
and 15 year olds

* How many cars with up to 3 people on the freeway? Count all cars with 1
or 2 or 3 people

* How many ice cream brands sell for up to $1.50? Count all brands that
sell for $1.50 or less.

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