the mean of 50 observations was 36. it was found later that an observation 47 was wrongly taken as 23. the corrected new mean is  Choose one
A) 35.24
B) 36.16
C) 36.22
D) 36.48
E) none
<gadget id="calculator">36 * 50</gadget>
<output>1_800</output>

<gadget id="calculator">50 - 2</gadget>
<output>48</output>

<gadget id="calculator">48 - 23</gadget>
<output>25</output>

<gadget id="calculator">1_800 + 25</gadget>
<output>1_825</output>

<gadget id="calculator">1_825 / 50</gadget>
<output>73/2 = around 36.5</output>

<result>D</result>
the mean of 50 observations was 36. it was found later that an observation 47 was wrongly taken as 23. the corrected new mean is
divide(add(multiply(36, 50), subtract(subtract(50, const_2), 23)), 50)
"solution correct sum = ( 36 x 50 + 47 - 23 ) = 1824 . â ˆ ´ correct mean = 1824 / 50 = 36.48 . answer d"