Probablity

Related BrainMass Solutions

• Probability: Balls in an Urn

  1) Total number of balls = n+m Number of white balls = n Probability that all n white balls are left back in the urn = n/(n+m) 2) Total number of balls in the urn = 5 + 10 = 15 Probablity that a white ball is drawn = 5/15 = 1/3 Probablity that

• Probability of event occurring

  21135 Probability questions a)Probablity an event is likely to occur? b) P of an impossible event? c) Sample space consists of 25 separate events equally likely. What is P of each? d) True/False test. P of correct if a random guess?

• Microscopic Toolmark Analysis

  I then multiplied the 1/2,200,000 x 256 to obtain 1/568,000,000: the probablity that 8 striae out of the 27 will match in spatial relationship and density.

• Probability : Random Selection and Conditional Probability

  So the probablity that the ball selected from urn II is white is 2/(2+1)=2/3. In the other case, the probablity that the randomly-chosen ball from urn I is red is 4/(2+4)=2/3 and then urn II will contain 1 white ball and 2 red balls.

• Random Sample for Binomial Probability Distribution

  Using the binominial probablity distribution, calculate the probability of having 3 or fewer red balls in a sample of 20 balls removed randomly from the urn... We have 90 black balls and 10 red balls in the urn.

• Hourly workers mean wage calculation

  What is the probablity that the sample mean is at least $ 13.80 per hour, given a random sample of {n=50 workers} The solution calculates the mean wage for hourly workers based on the population statistics.

• Probability

  338361 Probablity: Computer Specialty Manufacturer Support Department A computer specialty manufacturer has a two-person technical support staff who work independently of each other.

• Cumulative distribution function (same as 26793)

  Now, we know that the total area under each curve from -inf. to +inf. corresponds to a value of 1 each, which is the total probablity of each X and Y. Now, from the definitions above, the cumulative dist. fun.

• Probability: Random Selection

  Probablity in Case(i) : 1/4*1/3 = 1/12.[1/4 from Draw1 and 1/3 from Draw 2] Probablity in Case(ii) : 1/2*1/4 = 1/8. The total probability of drawing a red ball on Draw 2 is the SUM of the probablities of the cases outlined above.

• Probablity of telephone customers using a particular service provider

  46139 Probablity of Telephone Customers using a Service Provider The nation's largest cell phone service provider, with 36 million subscribers out of a total of 148 million cell phone users in the U.S. is XYZ company.