Question
An object of mass βmβ be made to fall freely from a
height βhβ. At the start the potential energy is _____ and kinetic energy is ______.Solution
At the start of the free-fall of an object, the potential energy is mgh and kinetic energy is zero.
The probability of getting a total of 7 on two dice thrown together is:
If the first, second and third moment about origin are 2, 8 and 14. respectively, then Karl Pearson gamma coefficient of skewness y1 is:
At a reservation counter. passengers are arriving for booking the tickets in a Poisson fashion with mean rate 60 per hour. The kurtosis of the inter-ar...
Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other is:
In a 3 races, 2 genders and 5 in each treatments group for two -way ANOVA, the degree of freedom for source of variation due to interaction, error and ...
The mean and median of the distribution are 10 and 11 respectively, then the mode equals to
If ten coins are tossed simultaneously, then the probability of getting at most I head is:
Two data set of size 9 and 6 have standard deviation 3 and 4 respectively and arithmetic means 3 and 3 respectively. The standard deviation of combined...
If moment generating function of continuous random variable X is (Ξ» /Ξ»βt) ;t < Ξ», then E(X3) equals to:
A man pedals cycle from his house to his office at a speed of 10 km/h and back from the office to his house at a speed of 15 km/h. His average speed (i...