A community paper in the Spanish language was delivered to many sites in the San Francisco Bay area. As a check on the circulation numbers that are important to advertisers, a survey was conducted at four drop sites. The number of papers delivered to each site and the number remaining after 3 days w…
A real number x is selected at random from the interval -7≤x≤8. Find the probability that x^2-7x+10≥0.
a) What is the probability that the average fracture strength of 100 randomly selected pieces of this glass exceeds 14.5?
b) Find an interval that includes, with probabil…
a) What is the cumulative distribution function of the waiting time?
b)What is the variance of the waiting time?
c)What is the probability that the first call after 11:30 am is …
(1 pt) An instructor gives his class a set of 19 problems with the information that the next quiz will consist of a random selection of 5 of them. If a student has figured out how to do 9 of the problems, what is the probability the he or she will answer correctly
(a) all 5 problems?
(b) at least 4 pr…
(b) 2 of the women refuse to serve together?
(c) 1 man and 1 woman refuse to serve together?
Help please! How do I work …
An article in Information Security Technical Report, “Malicious Software—Past, Present and Future” (Vol. 9, 2004, pp. 6–18), provided the following data on the top 10 malicious software instances for 2002 (Fig. below). The clear leader in the number of registered incidences f…
PG 173 #6
Suppose that there is only a 1/10,000,000 probability that a person will get struck by lightning.
PG 173 #5
The probability of getting a royal flush when you deal out a 5 card hand is 1.54 x 10-6. Suppose you deal out 8 x 10-6 hands. What is the probability that you will get 0 royal flushes?
Make a list of the probabilities that you will get n royal flushes, for n = 1 to n = 10
PG 173 #6
Suppose that there is only a 1/10,000,000 probability that a person will get struck by lightning. Out of 200 million people in the country, what is the probability that there are fewer than 15 people who will be struck by lightning?
PG 173 #10
Let T1………T25 be binomial random variables with identical parameters n = 100 and p = .3.
Use the central limit theorem to calculate the probability that the sum of all the Ts will be less than 1,000.
PG 173 #11
Let T1………T20 be geometric random variables with identical parameters p = .7.
Use the central limit theorem to approximate the probability that the sum of all the Ts will be less than 10.
3,3, 1,4, 2, 1, 1, 2, 3,2
(3 shots to make 1, 3 shots to make 2nd, 1 shot to make 3rd)-Independent
a)What is the distribution of the number of attempts needed?
What is the…
In a freshmen high school class of 400 students, 110 take math, 130 take English, 150 take history, 30 take math and English, 40 take math and history, 50 take English and history, and 280 take math or English or history. If a freshmen strudent is picked at random from the class, then, for k=0,1,2,3…
In Las Vegas there is a game called high-low, there are three possible bets. Assume that $10 is the size of the bet. A pair of fair six-sided dice is rolled and their main sum is calculated . If you bet low, you win $10 if the sum of the dice is {2,3,4,5,6}. If you bet over, you win $10 if the sum i…
Scores: 5, 7, 8, 4, 7, 9, 6, 6, 5, 3
9, 6, 4, 7, 7, 8, 6, 7, 8, 5
The following problem is based on probability calculations that Shuster (1991)performed for a court case. In a earlier cocaine “bust,” Florida police seized 496 packets alleged to be cocaine. Of the 496 packets 4 were tested and all 4 were found to contain cocaine. For this case, the police randomly…
5.Tell me what the probability is that the new Sherlock Holmes Movie came in with different ratings by chance rather than something else in 400 theatres.
Expected Value Actual Value
5 Stars …
Schmuland (2001) explored the use of the Poisson distribution to model the number of goals the hocket star, Wayne Gretzky, scored during a game as an Edmonton Oiler. Gretzky played 696 games with the following distribution of the number of goals scored:
Points: <span st…
Find:
a) c;
b) E(X)
Probability question
A recent study shows that 30% of Canadians are against the death penalty, 40% support it and %30 are undecided.
a) What is the probability of getting at least 5 favorable (those who support death penalty) answers out of a small survey including 10 people?
b) Let’s say an investigation is done on 1000 people, what would the average, variance and standard deviation be for people who support the death penalty?
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