The mean, median and modal marks of 100 students were found to be 40, 41 and 43 respectively. Later on it was discovered that a score of 53 was misread as 83. Find the correct mean corresponding to the correct score.
Mean = 40 Median = 41 Mode = 43 n = 100 a score of 53 was missed as 83 X = 40 =`(sumX_i)/(n)` `40 = (sumX_i)/(100)` ` ` `sumX_i = 40 xx100 = 400` `` correct`sumX_i = 4000 - 83 + 53` ` = 3970` `correct X = 3970/100` `=39.7 ` ` `
Lorenz Curve is given by:
L(x) = 1/3 (X^3) + 2/3 (x^5). Calculate Gini Coefficient.
In a frequency distribution the last cumulative frequency is 500. Q3 must lie in?
Which of the following statements about a firm's average cost curves is false?
