For the following frequency distribution
Class : 3-5 5-7 7-9 ...
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...
Which option is incorrect for the component of ti.me series.
The 95% confidence interval of average age of accidents in any city during last year for a sample of size 100 with mean age 34.25 from population of st...
X1 and X2 represent number of occurrences of event A and 8 that follow Poisson distribution with mean rate λ1 and λ2 , If Y1 and Y2 are inter-occurre...
If the mean and variance of a binomial distribution are 5 and 4, respectively, then the value of n is:
The curve obtained by joining the points, whose x-coordinates are the upper limits of the class interval and y-coordinates are corresponding cumulative...
The mode (correct to two decimal places) for the given data is:
If X and Y represent waiting time and service time of customers in shopping mall, have joint destiny f(x, y) = kx; 0 ≤ y ≤ x ≤ 1, then the value ...
The arithmetic mean of the following frequency distribution of number of accidents X on week working days is:
X: ...
