Three people are invited to participate in a seminar. Assume all four people arrives independently, and theprobability of any one of them is late is 0.2. Let X be the number of late participants of the seminar.Find the distribution (pmf) of X.Calculate the mean and the variance of X.

n = 4 peoples are there P(being late in the seminar) = p = 0.2x = no. of participant late in the…

Answered: Three people are invited to participate…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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2. A department store receives an average of 5 returned items per day. The probability that a returned item has an available replacement is 0.65. [Hint: there are two separate distributions here.] d. e. f. Calculate the probability that there are 4 returned items and none has available replacements in a certain day. Calculate the variance and the mean of the returned items. Calculate the variance and the mean of the replaced items. 2
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Three people are invited to participate in a seminar. Assume all four people arrives independently, and the probability of any one of them is late is 0.2. Let X be the number of late participants of the seminar. . Find the distribution (pmf) of X. Calculate the mean and the variance of X.