Here, since the reporting verb is in the past tense, the reported speech also changes its tense. So, the present forms are to be excluded. Also, ‘will sleep’ is incorrect, though ‘would sleep’ might have been correct. He said that he had been sleeping for 2 days.
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
Class:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1-3Â Â Â Â Â Â Â Â Â 3-5Â Â Â Â Â Â Â Â Â 5-7
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...
