Question
A child walks 25 feet towards North, turns right and
walks 40 feet, turns right again and walks 45 feet. He then turns left and walks 20 feet. He turns left again walk 20 feet. Finally, he turns to his left to walk another 20 feet. In which direction is the child from his starting point?Solution
Let x and y be two variables with variance as 1990 and 796 with 11 and 9 number of observations respectively. The value of F(10, 8) at 5% level of sign...
The value of k so that following is probability mass function
X:           -2           -1           0  �...
For completely randomized design for k treatments and n observations, yif = response from the jth unit receiving ith treatment, �...
A dice was thrown 400 times and 'six' resulted 80 times. The data is used to justify the hypothesis of an unbiased dice at 95% confidence. With referen...
If Z1, Z2,…Zn are n independent standard normal variates, then Σni=1 Z2i will follow:
The mode (correct to two decimal places) for the given data is:
Which option is incorrect for the component of ti.me series.
 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...
