Probability of Ordering Blue, White, and Green Cars | Homework Question Help

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Discussion Overview

The discussion revolves around a homework question related to calculating the probability of ordering specific colors of cars (blue, white, and green) from a set of four colors (blue, white, black, and green) over three successive orders. The focus is on understanding the probability concepts and techniques applicable to this scenario.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant seeks help with a probability problem involving the ordering of cars in specific colors.
  • Another participant suggests posting in the homework section and indicates the need to show an attempt at solving the problem.
  • A participant expresses frustration at not being able to solve the problem despite trying various techniques, noting the book's answer as .09375.
  • Participants discuss different approaches to finding the probability, including calculating the probability of not ordering black cars and considering "runs" of events.
  • One participant identifies that there are 24 distinct 3-combinations of the four colors, questioning if this should be the denominator in their probability calculation.
  • Another participant suggests that the denominator should account for repetitions in color orders, providing examples of possible combinations.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the correct approach to solving the problem, and multiple competing views on techniques and calculations remain evident.

Contextual Notes

Participants have not fully clarified their assumptions regarding the problem, such as how to handle repetitions in color orders or the specific definitions of events being calculated.

Iyafrady
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I need help with this homework question:
The colors blue,white,black, and green are in equal demand for a type of car.Three succesive orders are placed for this type of car.Find the probability of the following events.
a)one blue,one white, and one green are ordered.
 
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You should post under the HW section, and indicate your attempt to solve it.
 
if anyone could just help me get started I am shure i could figure it out.Ive tried several techniqies with no succes, the answer in the book is .09375
 
What techniques did you try?
 
i tried to find the probability that a black wasnt ordered and subtract that from 1 but i didnt get the right answer.I also tried doing a calculation were you find the "runs" of an event but that also failed.Aswell as other techniques i can't remember.
 
Iyafrady said:
i tried to find the probability that a black wasnt ordered and subtract that from 1 but i didnt get the right answer.I also tried doing a calculation were you find the "runs" of an event but that also failed.Aswell as other techniques i can't remember.
How many different 3-combinations of 4 colors are there?
 
Last edited:
ok there are 24 distinct 3-combinations, and that would be the denominator??What about the numerator?maybe I've been lookaing at this problem too long..:-(
 
Last edited:
For the denominator, you should allow for repetitions:

all black = {B, B, B, B} or all blue = {b, b, b, b} or 2 white, 2 green = {w, w, g, g} = {w, g, w, g} = {w, g, g, w} = etc...
 

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