Following is the monthly income of eight families in a locality. Monthly income : 70,10,500,75,13,250,8,42 find out arithmetic mean using short cut method.

Shortcut method splution

Calculate median from the Following data

Answer: The arithmetic mean is 121. Explanation: The total numbers of families (N) is 8. The assumed average (A) here is 75, which lies in the middle of the distribution. The total monthly income of all the families is = 70 + 10 + 500 + 75 + 13 + 250 + 8 + 42 = 968 The arithmetic mean through the direct mean =   = = 121 The summation of deviation (D) from assumed mean = -5 + (-65) + 425 + 0 + (-62) + 175 + -67 + -33 = 368 The arithmetic mean through direct method is = A + = 75 + = 75 + 46 = 121 Read more on Brainly.in 54793#readmore