The mean of 50 observations is 200. But later he found that there is decrements of 34 from each observations. what is the the updated mean is ?
Choose the correct choice:
A) 165 B) 166 C) 190 D) 198 E) 199
166   Answer is 166
<result>B</result>
The mean of 50 observations is 200. But later he found that there is decrements of 34 from each observations. what is the the updated mean is ?