Question
Study the given pattern carefully and select the number
that can replace the question mark (?) in it. 445 285 80 550 332 109 655 441 ?Solution
The correct answer is A
If the second and third moment about the origin are 8 and 18 and the third moment about mean is -14 , then the first moment about the origin is:
The Pearson's correlation coefficient between following observation
X:           1             2          �...
If a discrete random variable X follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20, the value of P(|X-14| < 5) will be:
If the first quartile of data set 8,10,8,7,9 is 7.5, then the value of quartile deviation is
Which of the following is an example of using a sample to make inference about a population?
For frequency distribution presentation , which option is wrong.
 X and Y are independent normal variables with mean 50 and 80 respectively and standard deviation as 4 and 3 respectively. What is the distribution o...
The null hypothesis in ANOVA one-way classification, the study of the variances due to k different sources, is:

