the mean of 9 observetions was found to be 35. later ,it was found that an observation 81 was misread as18 .find the correct mean
Answers
Answered by
1
Step-by-step explanation:
total = 9 × 35
total = 315
ATQ,
315 - 18 + 81
= 378
correct mean = 378 / 9
= 42
Answered by
0
Answer:
original mean= 42
Step-by-step explanation:
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