Question

Define distribution function?

Answer 1

The distribution function , also called the cumulative distribution function (CDF) or cumulative frequency function, describes the probability that a variate  takes on a value less than or equal to a number . The distribution function is sometimes also denoted.

Answer 2

if ques is 45*99+45*1 then,

answer
45(99+1)
45(100)
=4500