Get Started with ixamBee
Start learning 50% faster. Sign in now
Total number of students = 15/0.25 = 60
Number of students who are present = 60 – 15 = 45
Therefore, number of boys in the class = 45 × 3/5 = 27
The sample sizes for two cases were 15 each with means as 104 and 114 respectively and variances as 200 and 510 respectively.
Let the null hyp...
If rp be partial correlation compound on sample rAB.c compound from sample of size n, the test statistic for significance testing is
If the multiple correlation coefficient of X1 on X2 and X3 is zero, then:
To estimate the average work experience of MBA students at a management institute, five students are selected at random from each type of background, s...
If the population kurtosis of the observations 16,12,6,2,4,10 is 1.7414, then population kurtosis of the 8,6,3,1,2,5 is
Two random variables X and Y are said to be independent if:
The coefficient of correlation is the _________ of coefficients of regression.
The mode of the given data set is 12. The sum of the frequency on both sides of mode are 16. The skewness:
For a distribution, the mean is 10, variance is 16, Y1 is +1 and β2 is 4. The distribution is:
