The mean of 20 values was 150. It was detected on rechecking that one value 160 was wrongly copied as 135 for the computation of the mean. Find the correct mean.
Choose the correct choice from the following options
A) 151 B) 149 C) 151.25 D) 148 E) None of the above
151.25orrected mean = 150×20−135+160/20   = 3000−135+160/20   =3025/20= 
<gadget id="calculator">3025/20</gadget>
<output>605/4 = around 151.25</output>
151.25   Answer 151.25
<result>C</result>
The mean of 20 values was 150. It was detected on rechecking that one value 160 was wrongly copied as 135 for the computation of the mean. Find the correct mean.