The speeds of bikes follow a normal distribution model with a mean of $\displaystyle 80$ km/hr. and a standard deviation of $\displaystyle 9.4$ km/hr. Find the probability that a bike picked at random is travelling at more than $\displaystyle 95$ km/hr.? $\displaystyle [P(z) = P(1.60) = 0.4452]$

If the first quartile ($\displaystyle Q_1$) and third quartile ($\displaystyle Q_3$) of a normal distribution are 22 and 28, what is the median of the distribution?

The Mode of binomial distribution $\displaystyle B(7, \frac{1}{3})$ is

If $\displaystyle p$ is increased for a fixed $\displaystyle n$; the Binomial distribution shifts to the

The variance of a binomial distribution with parameters $\displaystyle n$ and $\displaystyle p$ is:

An example of a bi-parametric discrete probability distribution is

Probability distribution may be