Page 21 - E- Book Prim 6

Delta Modern Language Schools Grade 6
Primary stage
Math department
1st term 2024/2025

Unit (7)
Measures of central tendency and spread

The mean of aset of numbers

Mean =

ℎ

Average
The average is another name for the mean of a data set .
Missing value
You can find a missing value if we know the value of the mean of
some values.
The missing value = (the number of values x the mean ) – ( the sum of given values )

Measures of central tendency

Mean Median Mode

Mode:

Is the value that occurs most often.

Outlier:

Outliers are values that “ lie outside “ ( is much smaller or larger
than ) most of the other values in a set of data.

Range:

Is the difference between the greatest value and smallest value .

( range = greatest value – smallest value )

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