Median Flashcards

GCSE Mathematics (Edexcel) 1MA1

Median

The middle value in a data set when the values are arranged in order.

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Terms in this set (10)

1

Median

The middle value in a data set when the values are arranged in order.

2

Finding the median (odd number of values)

Arrange the data in order and select the middle value.

3

Finding the median (even number of values)

Arrange the data in order and calculate the mean of the two middle values.

4

Median in a frequency table

Find the cumulative frequencies, locate the median position, and identify the corresponding value.

5

Median position formula

(n + 1) ÷ 2, where n is the total number of values.

6

Median in grouped data

Use interpolation to estimate the median within the class interval containing the median position.

7

Effect of outliers on the median

The median is not affected by outliers as it depends only on the middle value(s).

8

Median vs Mean

The median is the middle value, while the mean is the average of all values.

9

Median in a stem-and-leaf diagram

Identify the middle value(s) after arranging the data in order from the diagram.

10

Median in cumulative frequency graph

Locate the median by finding the value at the halfway point of the total frequency on the graph.

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