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:

1) Mean of data = 1.8

2) Mean when data is increased by 10 = 11.8

3) Mean when data is doubled = 3.6

Step-by-step explanation:

Given : A set of data 2.4, 1.6, 3.2, 0.3, 1.5

To Find :

1) The mean of the data

2) The mean when Each piece of data is increased by 10

3) The mean Each piece of data is doubled

Solution :

$\text{mean} = \frac{\text{Sum of all the data}}{\text{Total numbers}}$

 SNo.                     Data       Data increased by 10         Data is doubled

   1                           2.4              2.4+10=12.4                         2×2.4=4.8

   2                           1.6               1.6+10=11.6                          2×1.6=3.2

   3                           3.2              3.2+10=13.2                         2×3.2=6.4

   4                           0.3              0.3+10=10.3                         2×0.3=0.6

    5                          1.5               1.5+10=11.5                            2×1.5=3

Total                          9                       59                                        18

1) The mean of the data

$\text{mean} = \frac{\text{Sum of all the data}}{\text{Total numbers}}$

$\text{mean} = \frac{9}{5}=1.8$

2) The mean when Each piece of data is increased by 10

$\text{mean} = \frac{\text{Sum of all the data}}{\text{Total numbers}}$

$\text{mean} = \frac{59}{5}=11.8$

3) The mean Each piece of data is doubled

$\text{mean} = \frac{\text{Sum of all the data}}{\text{Total numbers}}$

$\text{mean} = \frac{18}{5}=3.6$

Answer 2

Answer:

Step-by-step explanation:

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