Question
Which key is used to establish a relationship between
two database tables?Solution
A foreign key in a database links two tables by referencing the primary key of another table, ensuring relational integrity.
 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 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...
If A and B are mutually exclusive, the general addition rule 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 ...
For the distribution with unknown θ
We set the tes...
The mode of the given data set is 12. The sum of the frequency on both sides of mode are 16. The skewness:
For the recorded observation, the coefficient of variation is 0.2 and the variance is 16. The arithmetic mean is:
Which is not relative measures of skewness?
If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
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