Let the profit earned before commission was given to Paras be Rs. ‘100x’ Commission of Paras = 100x × 0.3x = Rs. 30x Ratio of profit shares of Paras to Punit = 18000:24000 = 3:4 Profit earned by Paras = (100x – 30x) × (3/7) = Rs. 30x Profit earned by Punit = (100x – 30x) × (4/7) = Rs. 40x According to the question 30x + 30x – 40x = 2000 Or, 20x = 2000 So, x = 100 So, required profit = 100 × 100 = Rs. 10,000
Which of the following options is INCORRECT?
If moment generating function of continuous random variable X is (λ /λ−t) ;t < λ, then E(X3) equals to:
A physical instructor claims that the mean weight of students in school is greater than 82 kg with standard deviation 20. If a sample of size 81 studen...
For a random variable x, the central moments (µi) of all order exist. The square of (2j + 1)th  moment (µ22j+1) is
The grouped data for the observations are
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For frequency distribution presentation , which option is wrong.
If Arithmetic mean and coefficient of variation of x are 10 and 40 respectively, then the variance of y = 10 – 2x is:
Two data set of size 9 and 6 have standard deviation 3 and 4 respectively and arithmetic means 3 and 3 respectively. The standard deviation of combined...
If the first quartile of data set 8,10,8,7,9 is 7.5, then the value of quartile deviation is
For the two variables X and Y, the following observations are tabulated
X:Â Â Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â...