Question

Mean of 10 observations is 58 and 5 is
subtracted from each observation, then the
mean of new observations is:​

Answer 1

Given:-

• Mean of 10 observations is 58 and 5 is subtracted from each observation.

To Find:-

• Then the mean of new observations.

Solution:-

Mean of 10 observations = 58

Sum of 10 observations = 58 × 10 = 580

If 5 is subtracted from all the observations,

Sum of 10 observations = 580 - (58 × 5)

= 580 - 290

Sum of 10 observations = 290

$\pink{ \red{ \sf{{New \: mean = \frac{new \: sum \: of \: observations}{no. \: of \: observations} }}}}$

$\pink{ \red{ \sf{{New \: mean = \frac{290}{10} }}}}$

$\pink{ \sf{{New \: mean = 29}}}$

Answer 2

Answer:

53 option a understood or not