Question

find the mean, median and mode for the following data 6 ,2,5,4,3,4,1​

Answer 1

Answer:

Measure

Set A

2, 2, 3, 5, 5, 7, 8

Set B

2, 3, 3, 4, 6, 7

The Mean

To find the mean, you

need to add up all the

data, and then divide

this total by the number

of values in the data.

Adding the numbers up gives:

2 + 2 + 3 + 5 + 5 + 7 + 8 = 32

There are 7 values, so you divide

the total by 7: 32 ÷ 7 = 4.57...

So the mean is 4.57 (2 d.p.)

Adding the numbers up gives:

2 + 3 + 3 + 4 + 6 + 7 = 25

There are 6 values, so you divide

the total by 6: 25 ÷ 6 = 4.166...

So the mean is 4.17 (2 d.p.)

The Median

To find the median, you

need to put the values

in order, then find the

middle value. If there are

two values in the middle

then you find the mean

of these two values.

The numbers in order:

2 , 2 , 3 , (5) , 5 , 7 , 8

The middle value is marked in

brackets, and it is 5.

So the median is 5

The numbers in order:

2 , 3 , (3 , 4) , 6 , 7

This time there are two values in

the middle. They have been put

in brackets. The median is found

by calculating the mean of these

two values: (3 + 4) ÷ 2 = 3.5

So the median is 3.5

Answer 2

Answer:

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