While calculating the mean and variance of 10 redings,a student wrongly used the reading 52 for the correct reading 25.He obtained the mean and variance as 45 and 16 respectively .Find the correct mean and the variance .

While calculating mean and variance of 10 readings, a student wrongly used the reading of 52 for the correct reading 25. He obtained the mean and variance as 45 and 16 respectively. Find the correct mean and the variance.

While calculating eh mean and variance of 10 readings,a student wrongly used the reading of 52 for the correct reading 25. He obtained the mean and variance as 45 and 16 respectively.Find the correct mean and the variance.

While calculating eh mean and variance of 10 readings, a student wrongly used the reading of 52 for the correct reading 25. He obtained the mean and variance as 45 and 16 respectively. Find the correct mean and the variance.

Find the mean and variance of following data :

Find the mean and variance of following data :

Find the mean and variance of following data :

Find the mean and variance of following data :

Calculate the mean and variance of the following data :

Calculate the mean and variance of the following data :