Question

Here is a set of data 2.4,1.6,3.2,0.3,1.5 Find the mean Each piece of data is increased by 10 find the mean Each piece of data is doubled find the mean

Answer 1

Answer:8.5

Step-by-step explanation:

Mean x¯¯¯ 1.7

Median x˜ 1.6

Mode 2.4, 1.6, 3.2, 0.3, 1.

Range 2.9

Minimum 0.3

Maximum 3.2

Count n 5

Sum 8.5

Answer 2

Mean of the given data is 1.8

Each piece of data is increased by 10 then mean is 11.8

Each piece of data is doubled then mean is 3.6

Given the data:

X : 2.4, 1.6, 3.2, 0.3, 1.5

Mean, m = Σx / n

Here:

Σx = sum of the data

n = total number of data

Σx = 9 ; n = 5

$m=\frac{9}{8}\\m=1.8$

If data is increased by 10:

X : 12.4, 11.6, 13.2, 10.3, 11.5

Σx = 59 ; n = 5

$m=\frac{59}{5}\\m=11.8$

If data values is doubled:

X : 4.8, 3.2, 6.4, 0.6, 3

Σx = 18 ; n = 5

$m=\frac{18}{5}\\m=3.6$

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