Out of first 20 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is ?
n(S) = 20n(Even no) = 10 = n(E)n(Prime no) = 8 = n(P)P(E U P) = 10/20 + 8/20 - 1/20 = 17/20
Find the range and mode of the data 17, 18, 28, 19, 16, 18, 17, 29, 18
View Answer Report Error Discuss
Find the standard deviation of {11, 7, 10,13, 9}
A table tennis player, lost 12 games out of 18 games played. Calculate the games won in terms of decimal.
A sequence a, ax, ax2, ......, axn, has odd number of terms. Then the median is
The mean of a distribution is 15 and the standard deviation is 5. What is the value of the coefficient variation?
If the standard deviation of a population is 3, what would be the population variance?
The variance of a set of data is 169. Then the standard deviation of the data is
If the standard deviation of a population is 10, what would be the population variance?
Aptitude and Reasoning
General Knowledge
Puzzles
Interviews
Technical
Certifications
Exams
Job
Roles
True or False
Exams