The mean of 5 observations is 7. Later on it was found that two observations 4 and 8 were wrongly taken instead of 5 and 9. Find the correct mean Share with your friends Share 0 Varun Rawat answered this Mean of 5 observations = 7⇒sum of 5 observations5 = 7⇒sum of 5 observations = 35Incorrect observations were 4 and 8 and correct observations were 5 and 9sum of incorrect observation = 4 + 8 = 12sum of correct observations = 5 + 9 = 14correct sum of 5 observations = 35 - 12 + 14 = 37correct mean = correct sum of 5 observations5 = 375 = 7.4 1 View Full Answer
