Rats are

20 white rats are available for an experiment. Twelve rats are males and remaining are females. A scientist randomly selected 5 rats and X = Number of female rats selected on a specific day. Then the random variable is

The houses of Monkey, Lion and Rat are sequentially

The kidney in rat are

Rat is

RBCs of rat are

The teeth of rat are

A rat maze consists of a striaght corridor, at the end fo which the rats take either right or left turn. If 10 rats are placed in the maze one at a time and the random variable X denotes the number of right turns taken by the rats, then the probability that at least 9 rats will trun the same way is

How are cockroaches and rats harmful to humans.