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Probability Distribution
Page 6
Questions (544)
The salaries at a corporation are normally distributed with an average salary of $29,000 and a standard deviation of $4,000.
3 answers
asked by
Sam
879 views
Problem 2.
THE PROBABILITY THAT A RANDOMLY CHOSEN SALES PROSPECT WILL MAKE A PURCHASE IS 0.20. IF A SALESMAN CALLS ON SIX
2 answers
asked by
siddhi
2,417 views
Airline overbooking is a common practice. Many people make reservations on several flights due to uncertain plans and then
2 answers
asked by
Michelle
566 views
Determine the mean and standard deviation of the random variable for which the probability mass function is defined as follows:
P
1 answer
asked by
Michelle
351 views
If 0 < y < 1 and 0 < x < 1, find the probability that
y < x. Begin by sketching te graph, and then use the area method to find
1 answer
asked by
Rose
313 views
Maria is playing a game of chance at the Hibiscus festival, costing $1 for each game. In the game two fair dice are rolled and
2 answers
asked by
Fakaapo. Suetusi
724 views
An urn has fifteen red balls and nineteen white balls. Three balls are selected at random and the number of red balls are
4 answers
asked by
F0reveryoung
533 views
In a carnival game, the player selects two coins from a bag containing four silver dollars and twelve slugs.
(a) Write down the
1 answer
asked by
Amanda
1,310 views
An urn contains sixteen red balls and seventeen white balls. A sample of three balls is selected at random and the number of red
2 answers
asked by
Amanda
1,145 views
The distribution of cash withdrawals from the automatic teller machine at a
certain bank has a mean of $500 with a standard
1 answer
asked by
Nancy
407 views
Six marbles are chosen without replacement from a box containing 10 red, 8 blue, and 3 yellow marbles. Let X be the number of
1 answer
asked by
Anne
337 views
Nine apples, four of which are rotten, are in a refrigerator. Three apples are randomly selected without replacement. Let the
4 answers
asked by
Rose Bud
1,346 views
store manager is doing a study on how to staff his franchise. He knows that the average number of pizzas ordered is 12 per hour
2 answers
asked by
ty
904 views
**I don't want the answer, I want to know how to set the problem up and the formula that I need to use. I am online with a tutor
2 answers
asked by
Shannon
821 views
suppose you have 10 green marbles, 10 gold marbles, and ten black marbles. You also have 3 bags. Your plan is to ask a friend to
1 answer
asked by
Ann-Marie Guischer
478 views
a large no. of bonobos were found to be normally distributed with a mean of 46 and a variance equal to 9. if each of their
1 answer
asked by
Jenny
281 views
Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8
4 answers
asked by
Jerry
1,444 views
among coffee drinkers, men drink a mean of 3.2 cups per day with a standard deviation of 0.8 cups. Assume the number of coffee
3 answers
asked by
natasha
1,525 views
if income in the US was normally distributed, what z-score would represent the bottom 10%, the poorest 10%
3 answers
asked by
stacey
320 views
Let X be a random variable that records the outcome of a dice toss. The probability distribution for X is as follows:
Outcome: 1,
3 answers
asked anonymously
48 views
A bag of colored blocks contains the following assortment of colors:
red (18), blue (14), orange (20), purple (14), green (10),
1 answer
asked by
Jen
397 views
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14
1 answer
asked by
Jennifer
1,009 views
A bag of colored blocks contains the following assortment of colors:
red (18), blue (14), orange (20), purple (14), green (10),
1 answer
asked by
Jennifer
410 views
The life (in hours) of a computer processing unit (CPU) is modeled as a weibull random variable with β=3 and α=901 hours. What
1 answer
asked by
eliseo
1,208 views
I. Use Chebyshev’s theorem to find what percent of the values will fall between 183 and 227 for a data set with a mean of 205
1 answer
asked by
Jennifer
445 views
An experiment was conducted where rats could choose to enter one of two corridors, A or B. A random sample of three rats is
1 answer
asked by
Ryan
611 views
How can the probability distribution of prices of new cars be described
1 answer
asked by
Simone
308 views
The authors generac generator produces voltage amounts with a mean of 125.6 volts and a standard deviation of 0.3 volt. using
2 answers
asked by
marie
616 views
Statistical Abstracts (117th edition) reports sale price of unleaded gasoline (in cents per gallon) at the refinery. The
1 answer
asked by
Amy
451 views
Let x be a random variable that represents the length of time it takes a student to complete a take-home exam in Dr. Larson's
4 answers
asked by
Hannah
1,875 views
Suppose that X is a random variable with mean and variance . Define a new variable Y such that . Which of the following is a
3 answers
asked anonymously
46 views
The variance of a random variable's probability distribution helps us to describe the distribution's:
a. shape b. center c.
3 answers
asked anonymously
37 views
A lottery contains 100 tickets. It costs exactly one dollar to play. (And you don’t get your dollar back if you win!) There
3 answers
asked anonymously
55 views
The weight of a product is normally distributed with a standard deviation of .8 ounces. What should the average weight be if the
2 answers
asked by
jenny
750 views
Let X be N(0,1) find the p.d.f of Y=|X|, a distribution that is often called the half normal.
1 answer
asked by
Alex
274 views
A manufacturing company has 5 identical machines that produce nails. The probability that a machine will break down on any given
3 answers
asked by
Mich Mich
1,586 views
I am to find the mean, variance, and standard deviation for the probability distribution. I don't even know where to start. Here
2 answers
asked by
Heather
476 views
I am to find the mean, variance, and standard deviation for the probability distribution. I don't even know where to start. Here
4 answers
asked by
Heather
1,370 views
A computer supply house receives a large shipment of blank CDs each week. Past experience has shown that the number of flaws per
2 answers
asked by
Adam
572 views
Suppose a basketball player successfully makes 70% of the free throw shots they attempt. Let X
represent the number of successful
2 answers
asked by
Adam
843 views
According to the Census Bureau publication Current Population Reports, the probability distribution for household size (number
1 answer
asked by
Ryan
634 views
a normal distribution has a mean of 22 and a standard deviation of 3. Find the probablility that a randomly selected x-value is
3 answers
asked by
alysha
559 views
I. Use Chebyshev’s theorem to find what percent of the values will fall between 156 and 276 for a data set with a mean of 216
2 answers
asked by
Tameka
1,127 views
A worker for the American Red Cross wants to predict the average number of blood donations of college students. He takes a
1 answer
asked by
Chelsea
477 views
Consider a system of 3 molecules, A, B, and C. Suppose the 3 units of energy can be distributed over the three atoms where each
3 answers
asked by
Melissa
404 views
At an outpatient mental health clinic, appointment cancellations occur at a mean rate of 1.60 per day on a typical Wednesday.
2 answers
asked by
Helen
978 views
Suppose you are playing a game. The random variable, Y, represents your net profit in dollars. The probability distribution of Y
3 answers
asked anonymously
45 views
The height of 16-month-old seedlings are normally distributed with a mean of 31.5 cm and standard deviation of 10 cm. What is
2 answers
asked by
Madmazel
536 views
The average number of radioactive particles passing through a counter during 1 millisecond in a lab experiment is 4. What is the
3 answers
asked by
ashley
564 views
The probabilty Distribution of a random variable X is given by the function
f(x)= 1/84 (5/x) (4/3-x) for x= 0,1,2,3 Calculate the
1 answer
asked by
Karmen
470 views
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