Questions LLC
Login
or
Sign Up
Ask a New Question
Probability Distribution
Page 9
Questions (547)
1. Use the following to answer questions: The table below presents the probability distribution for X = the number of email
2 answers
asked by
Denise
618 views
At the end of the festival the organizers estimated that a family of participants spent an average of $90.00 with a standard
4 answers
asked by
Diane
602 views
Scores on the ACT college entrance exam are Normally distributed with a mean µ = 20 and standard deviation σ = 5. An SRS of 25
2 answers
asked by
Alyssa
643 views
One last one.
A poll at Steve's high school was taken to see if students are in favor of spending class money to expand the
1 answer
asked by
Josh
614 views
For a normal distribution with a mean of 140 and a standard deviation of 55 find each value requested.
a. What is the minimum
2 answers
asked by
tammy
602 views
The next three questions refer to the following situation. Data from previous years reveal that the distribution if first exam
2 answers
asked by
Tara
637 views
Statistical Abstracts (117th edition) provides information aboutthe number of
registered automobiles, including taxis, by state.
2 answers
asked by
Anonymous
590 views
Of 200 adults, 176 own one TV set, 22 own two TV sets, and 2 own three TV sets. A person
is chosen at random. a. What is the
2 answers
asked by
HAPPY
557 views
A sign on the petrol pumps of a chain of petrol stations encourages customers to have their oil checked, claiming that one out
2 answers
asked by
matt
571 views
Mark and job are basketball players and will play a game. In the game, Mark will get 2 free throw attempts and John will get
2 answers
asked by
sarah
566 views
AAA reports that the average age of a car on U.S. roads in recent years has risen to 7.5 years. Suppose that the distribution of
2 answers
asked by
Anonymous
559 views
A manufacturing facility produces iron rods whose mean diameter is 2.5 inches with a standard deviation of 0.2 inch. If a sample
4 answers
asked by
Steven
571 views
Consider the following. (Give your answers correct to four decimal places.)
(a) Find P(-2.07 < z < 0.00). (b) Find P(-1.86 < z <
4 answers
asked by
Ayden
567 views
If the mean rate of arrival in a restaurant is 10 customers per hour, what is the probability of having 4 customers arriving in
3 answers
asked by
Pavlos Cs
548 views
4. John Rengel is the Quality Assurance Supervisor for Vino Supremo Vinyards. He knows that 10 percent of each box of corks is
3 answers
asked by
Lise
544 views
Construct the probability distribution for the value of a 2-card hand dealt from a standard deck of 52 cards (all face cards
2 answers
asked by
Carlos
548 views
two dices are tossed once. let the random variable be t he sum of the up faces on the dice. A). find and graph the probability
2 answers
asked by
sharik
541 views
An urn contains 10 balls of which 6 are white, 3 are red and 1 is green. Two balls are drawn at random from the urn. Find the
2 answers
asked by
sam
549 views
The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation
2 answers
asked by
brenda
541 views
Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance
2 answers
asked by
Jacob
541 views
2. The arrivals of customers at a drive-in banking window are governed by the Poisson distribution. Each customer requires 5
2 answers
asked by
Jus
531 views
the daily milk production for a certain type of dairy cow has a mean of 43 pounds per day with a standard diviation of 5 pounds
2 answers
asked by
bob
520 views
. Suppose in an event of fire, the probability is 95% that fire alarm will ring in a building. Let x denote the number of fire
2 answers
asked by
Zeet Ashrabi
541 views
The probability that a randomly chosen person in Botswana is 65 or older is approximately 0.2.
a) What is the probability that,
2 answers
asked by
mbambo
543 views
Bottles of a popular cola contain a mean amount of 300 mL of cola. There is some variation from bottle to bottle because the
2 answers
asked by
Maria Elizabeth
535 views
According to Chebyshev’s theorem, what proportion of a distribution will be with k=4 standard deviations of the mean? Show all
2 answers
asked by
Sharon
544 views
I'm working on a statistics project and need to evaluate the expected value using hypergeometric distribution. I am unsure which
2 answers
asked by
cp
501 views
Suppose that the amount of time it takes the IRS to refund to taxpayers is normally distributed with a mean of 12 weeks and a
1 answer
asked by
James
524 views
Did you ever buy an incandescent light bulb that failed (either burned out or did not work) the first time you turned the switch
2 answers
asked by
Jenny
522 views
Suppose X~N(11,4)
What is the standard deviation
1 answer
asked anonymously
11 views
Which represents the standard normal distribution:
A) X~N(0, 1) B) X~N(0, 0.1) C) X~N(1, 1) D) X~N(1, 0)
1 answer
asked anonymously
20 views
If X~B(20, 8)
What is the probability that P(X=12)
1 answer
asked anonymously
13 views
The mayor of the town of Quahog, Rhode Island, Adam West, conducted a study to determine the mean household income of his
2 answers
asked by
Cara
520 views
Let X represent the outcome of a single roll of a fair die. Suppose you will win $2 if the outcome is either 2 or 5, and lose $1
1 answer
asked by
jazmin cortez
512 views
In the past, the value of houses a local realtor has sold is normally distributed with a mean of $253,000 with a standard
2 answers
asked by
kayla
509 views
The probability that a person has an unlisted telephone number is 0.15. The district manager of
a political action group is
1 answer
asked by
Joy
512 views
Suppose that you have a normally distributed population with unknown μ and standard deviation σ = 20. Given that the
2 answers
asked by
rbcjy
507 views
The times for completing one circuit of a bicycle course are normally distributed with a mean of 81.7 minutes and a standard
2 answers
asked by
john
499 views
⦁ Find the probability that a data value picked at random from a normal population will have a standard score (z) that lies
2 answers
asked by
sharon
494 views
In the past year, Jack's Pizaa Resturant grossed more than $1500 a day for about 83% of its business days. Suppose 8 days are
2 answers
asked by
Kim
484 views
the heights of 1000 students in a college are normally distributed with a mean 5’10" and SD 2". Use 68% for the region from
2 answers
asked by
hr
500 views
All deal with a random variable X that follows a normal probability distribution with mean equal to 37 and a standard deviation
1 answer
asked by
luke
503 views
A sixth form class consists of 6 girls and 9 boys. Three students from the class are chosen at random. The number of boys chosen
1 answer
asked by
Nabiha
507 views
How do I generate the bezier curve control points to represent a normal (Gaussian) distribution?
1 answer
asked by
statstudent
470 views
If 30% of students over the age of 18 smoke and 9 students are chosen at random. What is the probability that less than 2 of
2 answers
asked by
Vincent
457 views
A survey of 50 lobster fishermen on Funafuti (an island in Tuvalu), found that they catch an average of 32 pounds of lobster per
2 answers
asked by
Qwenie
492 views
A newspaper survey found that 65% of readers found online tutorials useful. If a random sample of 9 readers is selected, compute
2 answers
asked by
me
484 views
Exponential distribution was used to model the lengths of CD-ROM drives in a two drive system. The two CD-ROM drives operate
1 answer
asked by
Danielle
483 views
Suppose the number of customer complaints per day on the morning shift 6-12 noon at Doys is distributed as
# of complaints f(x) 0
1 answer
asked by
James
487 views
Scores on the LSAT are approximately normally distributed. In fact, published reports indicate that approximately 40 percent of
1 answer
asked by
Mike
480 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (37)
Coin flipping
Combinatorics
Conditional probability
Daily Water Intake
Data Analysis
Data distribution
Descriptive Statistics
Discrete Probability
Energy
Exam scores
Expected Value
Grading
Hypothesis Testing
Independent Events
Mathematics
Mathematics/Statistics
Normal Distribution
Probability
Probability and Sampling
Probability and Statistics
Probability Calculation
Probability Theory
Random Variables
Rate of Arrival
Sample Mean
Sampling
Sampling and Estimation
Sampling and Hypothesis Testing
Sampling and Sampling Distributions
Sleep Statistics
Spinner outcomes
Statistical Analysis
Statistics
Statistics and Analysis
Statistics and Data Analysis
Statistics and Probability
Statistics or Probability