2. A box in a supply room contains 5 40-W bulbs, 4 60-W bulbs and 7 75-W bulbs.Suppose that 3 bulbs are randomly selected:a. What is the probability that exactly 2 of the selected bulbs are 75-W?b. What is the probability that all 3 selected have the same ratings?c. What is the probability that one bulb of each rating is selected?

Possible number of arrangement of the event is calculated using principle counting method. Some of…

Answered: 2. A box in a supply room contains 5…

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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Similar questions

A math class consists of 25 students, 14 female and 11 male. Three students are selected at random to participate in a probability experiment. Compute the probability that d. three males are selected. e. three females are selected.
5. A box contains 6 black and 4 red balls. Two balls were drawn one by one without replacement. Find the probability that the two selected balls are red. A 1/6 B. 2/15 C 8/45 D. 1/4
A group consists of 5 Democrats and 8 Republicans. 7 people are selected to attend a conference.a. In how many ways can 7 people be selected from this group of 13?b. In how many ways can 7 Republicans be selected from the 8 Republicans?c. Find the probability that the selected group will consist of all Republicans.
13% of all Americans live in poverty. If 39 Americans are randomly selected, find the probability thata. Exactly 5 of them live in poverty. b. At most 4 of them live in poverty. c. At least 3 of them live in poverty. d. Between 3 and 10 (including 3 and 10) of them live in poverty.
3. A box has 6 black, 4 red, 2 white and 3 blue shirts. Two shirts are picked at random, find the probability of drawing 1 black shirt and 1 white shirt? a. 4/35 b. 12/15 c. 8/15 d. 8/35
A bag of M&M has 6 red, 7 blue, and 2 yellow M&M's. What is the probability of randomly picking: (Round to 4 decimal places) a. A yellow? b. A blue or green? c. An orange?
6.1 : Answer
There are two boxes. Box A contains 6 red balls, and 4 blue balls andBox B contains 4 red balls and 8 blue balls. A die is rolled, if the number is lessthan 3, a ball is selected from box A. If the result is 3 or more, a ball is selectedfrom Box B. Calculate:a. The probability that the ball will be red and selected from Box B.b. The probability that the ball will be blue.
UK.5.
4. A box has 6 black, 4 red, 2 white and 3 blue shirts. Two shirts are picked at random, find the probability of drawing 2 black shirts? a. 1/7 b. 2/15 c. 6/15 d. 1/8
Q1. It is reported that the percentage of people in a small village that have health insurance is 80%. If 17 people are randomly selected, the find the following (a) The probability that 7 of them have health insurance. (b) The probability that at least 10 have health insurance.
I. A card/s is/are taken from a deck of 52 cards that has been thoroughly shuffled. Find the probability of: A. "4' of hearts B. a king or a red card C. a non-face card D. an ace and a queen E. neither a spade nor a jack

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