The mean of 20 observations was found to be 65 but later on it was found that 69 was misread as 96 .Find the correct mean.

The mean of 25 observations was found to be 78.4. But later on it was found that 96 was misread as 69. The correct mean is (a)76.54 (b) 78.4 (c) 79.48 (d) 81.32

The mean of 20 observations was 85 but later it was found that 97 was misread as 79. The correct mean is : 20 अवलोकनों का माध्य 85 था, परंतु बाद में यह पाया गया कि 97 को गलती से 79 पढ़ लिया गया था | सही माध्य है :

The mean of 20 observations was 85, but later it was found that 97 was misread as 79. The correct mean is:

The mean of 40 numbers was found to be 35. Later on, it was detecte that a number 56 was misread as 36. find the correct mean of the given numbers.

Mean of 50 observations was found to be 80.4. but later on, it was discovered that 96 was misread as 69 at one place. Find the corect mean.

The mean of 40 numbers was found to be 38. Later on, it was detected that a number 56 was misread as 36. find th correct mean of the given numbers.

Mean of 50 observations was found to be 80.4. But later on, it was discovered that 96 was misread as 69 at one place. Find the correct mean.

Mean of 50 observations was found to be 80.4. But later on, it was discovered that 96 was misread as 69 at one place. Find the correct mean.

The mean of the marks scored by 50 students was found to be 39 later on,it was observed that a score was 43 was misread as 23 find the correct mean.