PYQs Based Test - 21 : Discrete and Continuous Distribution

Consider a Poisson distribution for the tossing of a biased coin. The mean for this distribution is μ. The standard deviation for this distribution is given by

Among the four normal distributions with probability density functions as shown below, which one has the lowest variance?

A nationalized bank has found that the daily balance available in its savings accounts follows a normal distribution with a mean of Rs. 500 and a standard deviation of Rs. 50. The percentage of savings account holders, who maintain an average daily balance more than Rs 500 is _______

The number of parameters in the univariate exponential and Gaussian distributions, respectively are

Probability density function of a random variable Xis given below

f≤ft( x ) = ≤ft\{ {*20c 0.25&if 1 ≤ x ≤ 5\\ 0&otherwise } .

P (X ≤ 4) is