Observations of a data are 23, 45, 33, 21, 48, 30, 34, 36 and 35. Without actual calculation choose the mean of the data.

Observations of a data are 16, 72, 0, 55, 65,55, 10 and 41. Chaitanya calculated the mode and median without taking the zero into consideration. Did Chaitanya do the right thing?

Range of the data "18, 24, 15, 17, 33, 16, 29, 45, 12, 3, 33, 21" is

Ages of players in a cricket team are 25, 26, 25, 27, 28, 30, 31, 27, 33, 27, 29, Find the mean and mode of the data.

Ages of players in a cricket team are 25, 26, 25, 27, 28, 30, 31, 27, 33, 27, 29. (i) Find the mean and mode of the data.(ii) Find the minimum number of players to be added to the above team so that mode of the data changes and what must be their ages.

Marks of 12 students in a unit test are given as 4, 21, 13, 17, 5, 9, 10, 20, 19, 12, 20, 14, Assume a mean and calculate the arithmetic mean of the data. Assume another number as mean and calculate the arithmetic mean again. Do you get the same result? Comment.

Arithmetic mean of 7 observations was found to be 32. If one more observation 48 was to be added to the data what would be the new mean of the data?

Estimate the arithmetic mean of the following data 1, 15, 2, 9, 9, 1, 1, 11, 12, 12, 10, 10, 17, 2 Verify your answers by actual calculations.

Estimate the arithmetic mean of the following data : 5, 6, 7, 8, 8, 10 10, 10, 12, 12, 13, 19,19,19,20. Verify your answers by actual calculations.

Estimate the arithmetic mean of the following data : 17, 25, 28, 35, 40. Verify your answers by actual calculations.