Question

The mean of 20 Observation is 59. If one oberwoli
49 is misread as 24, find the new mean"​

Answer 1

Answer:

Correct mean:14.6

Step-by-step explanation:

Correct mean:14.6

We know that

\begin{gathered}mean = \frac{sum \: of \: all \: observation}{total \: observation} \\ \\ \end{gathered}

sum of all observation = 20×15.5

so

=310

Later it was found that 24 was misread as 42.

sum of observation after correction

= 310-42+24

= 292

\begin{gathered}new \: mean = \frac{392}{20} \\ \\ =14.6 \\ \\ \end{gathered}

Hope it helps you.

Answer 2

Good Afternoon dear...........