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Probability distributions
Page 5
Questions (281)
The probability distribution of number of calls coming to a call center every 15 minute period is shown
below. x 5 6 7 8 9 10 11
1 answer
asked by
meri
829 views
Starting at time t=0, cars arrive at a car wash according to a Poisson process with rate of λ cars/hour. At any given moment,
2 answers
asked by
YuLin
836 views
A store manager believes that 42% of her customers are repeat business (have visited her store within the last two weeks).
4 answers
asked by
Babyboo
1,659 views
Peter has two fair tetrahedral (four sided) dice. The faces on each die are labeled l, 2, 3 and 4. One die is red and another is
2 answers
asked by
ali
825 views
An automatic machine in a manufacturing process is operating properly if the length of an important subcomponent is normally
2 answers
asked by
Lia
809 views
On average, 30-minute television sitcoms have 22 minutes of programming.If a probability distribution for minutes of programming
1 answer
asked by
Michelle
777 views
Suppose that the probability distribution of a random variable x can be described by the formula
P(x) = x/15 For each of the
1 answer
asked by
Chinadoll
754 views
QUESTION 1
The discrete random variable X has the following probability distribution function. x 0 1 2 3 4 P(X=x) 0.3 0.2 0.1 0.3
1 answer
asked by
jie yee
699 views
An athletic director found that 31% of the football players have an A average in school. If 2% of the students at the school
3 answers
asked by
dometrice
690 views
A population forms a normal distribution with a mean of sigma=75 and a standard deviation of 20.
- What proportion of the sample
2 answers
asked by
Taryn
690 views
a car dealer estimates that they sell two cars on average per week. they only have space in their showroom for 4 cars. if stock
1 answer
asked by
mary
641 views
TRUE OR FALSE
35. A survey of women owned business found that approximately 30% of all small businesses are owned by
2 answers
asked by
meri
661 views
Decide which variables described is likely to have a normal or near normal distribution
a. the number of courses remaining until
2 answers
asked by
Diana
655 views
I got the answers already and correct me if I am wrong. I just need help finding the mean and standard deviation for section B.
A
2 answers
asked by
ANON
641 views
If the population is normally distribution then the sample must be normally distributed even for small sample size? True or
2 answers
asked by
Jamie
617 views
A certain curve (that is NOT the normal curve) is shown below. The curve is symmetric around 0, and the total area under the
2 answers
asked by
Lilly
597 views
How do I sketch distributions? I think I'm doing it wrong. Is there an option my friends stats-calc(her calcultor is very
2 answers
asked by
Gloria
627 views
Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose
1 answer
asked by
Salman
612 views
A lorry carries heavy cartons of goods. The weights of theses cartons are distributed about a mean of 100 kg and with a standard
4 answers
asked by
Sniper619
599 views
urn contains 4 white and 6 red rolls. Four balls are drawn at random (without replacement) from the urn. Find the probability
2 answers
asked by
Anonymous
585 views
Find Maximum Likelihood Estimator of Gamma Distribution
Given: f(x; β) = [ 1/( β^2) ] * x * e^(-x/ β) for 0 < x < infinity EX
2 answers
asked by
Cecile
594 views
When circuit boards used in the manufacture of compact disc players are tested, it is discovered that each has a 5% chance of
2 answers
asked by
Bert
602 views
In a bag there are 8 red jelly beans and 7 green jelly beans. The 4 jelly beans are randomly chosen from the bag without
2 answers
asked by
Jenna
574 views
1) No, 8.0 is the correct answer.
2) a strange and unlikely probability distribution. But lets go with the stated parameters. It
1 answer
asked by
economyst
542 views
A manufacturer of luxury SUVs is concerned because warranty claims and customer dissatisfaction seems to be on the rise. The
2 answers
asked by
sam
548 views
Assume a binomial probability distribution has p = .60 and n = 200.
c. What is the probability of 100 to 110 successes (to 4
2 answers
asked by
vanessa
552 views
The number of automobile accidents per day in a particular city is believed to have a Poisson distribution. A sample of 80 days
1 answer
asked by
Nobin
588 views
The closing price of Schnur Sporting Goods Incv. common stock is uniformly distributed between $20 and $30 per share. Draw the
2 answers
asked by
eric
543 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
Koia
553 views
Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by
2 answers
asked by
Jacob
555 views
Compute the average number of interactions per bunch crossing for a luminosity L=2.5E31 cms-1,if the total cross section is
3 answers
asked by
Phyllis
558 views
Using formula P(x) = x/15
For each of the values x = 1, 2, 3, 4, and 5. a. probability distribution of x. b. Show that the
2 answers
asked by
Chinadoll
550 views
WHAT IS THE MEANING OF X~N(42,5,103.71)
2 answers
asked by
JUSTUS
538 views
Random variables X and Y are both normally distributed with mean 100 and standard
deviation 4. It is known that random variable
2 answers
asked by
Rob
543 views
a fair coin is flipped 5 times the random variable is x is defined to be the number of heads that are observed identify the
2 answers
asked by
virginia
553 views
There are ten Cortland, seven Gala and eight Macintosh apples in a basket. You pick three apples from the basket.
a) What is the
4 answers
asked by
Anonymous
518 views
Determine whether each of the distributions given below represents a probability distribution. Justify your answer.
(A) x 1 2 3 4
2 answers
asked by
mom
519 views
Suppose X~N(11,4)
What is the standard deviation and of the distribution
1 answer
asked anonymously
12 views
Three cards are randomly chosen, without replacement, from a standard deck of
52. The random variable X represents the number of
2 answers
asked by
Anonymous
492 views
One-fifth of the population is left-handed. A random sample of 20 people is selected.
a) What is the probability that no more
2 answers
asked by
Ben
479 views
The students in your class with three children in their families are asked to state the number of boys in the family. What are
2 answers
asked by
Ariana
483 views
. Consider a large number, N(0)
, molecules contained in a volume V (0) . Assume that there is no correlation between the
2 answers
asked by
esmat
507 views
For a chapter on the Central Limit Theorem; I have a Uniform Distribution problem were a & b are not given. Only the average,
3 answers
asked by
Anonymous
483 views
Suppose that the percentage returns for a given year for all stocks listed on the New York Stock Exchange are approximately
1 answer
asked by
Amy
484 views
government data assign a single case or each death that occurs in the u.s. the data show that the probability is 0.45 that a
1 answer
asked by
josh
447 views
A pizza store owner noticed that a random count (Y) of pizzas ordered by students who reside on campus has distribution shown
1 answer
asked by
Anonymous
467 views
In a hospital 6 deliveries have been occurred. The probability that the baby is female equal 0.48
a. Find the probability
1 answer
asked by
Nada
441 views
The standard normal distribution has a mean of zero and a standard deviation of 1.
true or false
1 answer
asked anonymously
34 views
the resting heart rate for a sample of individuals are normally distributed with a mean of 67 and a standard deviation of 11.
1 answer
asked anonymously
35 views
Explain normal distribution and exponential distribution respectively in detail giving all the assumptions and relevant examples
1 answer
asked anonymously
12 views
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Parent Categories (16)
Apple picking probability
Continuous Random Variables
Data Analysis
Expected Value
Expected Value and Variance
Math/Statistics
Probability
Probability and Statistics
Probability Theory
Random Variables
Sampling and Probability
Statistical Analysis
Statistical Mechanics
Statistics
Statistics and Probability
Statistics or Probability