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Probability Distribution
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Questions (542)
LongLast Inc. produces car batteries. The mean life of these batteries is 60 months. The distribution of the battery life
4 answers
asked by
Mark
2,068 views
When two balanced dice are rolled, 36 equally likely outcomes are possible as shown below.
(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1,
4 answers
asked by
Jamie
4,768 views
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 83 minutes
4 answers
asked by
Kelsey
4,391 views
In a survey, 600 mothers and fathers were asked about the importance of sports for boys and girls. Of the parents interviewed,
4 answers
asked by
nicole
2,124 views
Suppose that the number of insects captured in a trap on
different nights is normally distributed with mean 2950 and standard
1 answer
asked by
Lindz
539 views
The weights of black bears are normally distributed with a mean of 264 kg and a standard deviation of 38 kg. Let X be the weight
2 answers
asked by
SHEILA
750 views
A quiz consists of 10 multiple-choice questions. Each question has 5 possible answers and only one of them is correct. A student
2 answers
asked by
Amriajasmine
1,233 views
At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people
2 answers
asked by
Alex
568 views
Bass: The bass in Clear Lake have weights that are normally distributed with a mean of 2.3 pounds and a standard deviation of
3 answers
asked by
robin
1,133 views
For a binomial distribution with parameters
n = 5 , p = 0.3 . Find the probabilities of getting : (i) Atleast 3 successes. (ii)
4 answers
asked by
prawin
1,723 views
Supplier on-time delivery performance is critical to enabling the buyer’s organization to meet its customer service
4 answers
asked by
Priya
1,750 views
24% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and
4 answers
asked by
Anonymous
2,456 views
A package of Toys Galore Cereal is marked "Net Wt. 12 oz." The actual weight is normally distributed, with a mean of 12 oz and a
5 answers
asked by
ryan
1,717 views
Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability
5 answers
asked by
monea
3,658 views
Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of
4 answers
asked by
Jose
8,718 views
The Gamma distribution Gamma(𝛼,𝛽) with paramters 𝛼>0 , and 𝛽>0 is defined by the density
𝑓𝛼,𝛽(𝑥)=𝛽𝛼
7 answers
asked by
ramj
2,621 views
The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution
4 answers
asked by
Gayle
3,885 views
The t distribution should be used when ___.
the sampling population is not normal the sampling population is unimodal The
4 answers
asked by
John
2,909 views
Many companies "grade on a bell curve" to compare the performance of their managers and professional workers. This forces the
4 answers
asked by
Allex
3,617 views
If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal
5 answers
asked by
Pacifico
5,101 views
Who is the king of the late night TV? An internet survey estimates that, when given a choice between David Letterman and Jay
4 answers
asked by
Hayli
2,184 views
A student scores 96 on a test. The class average is 84, with a standard deviation of 4 points. What percentage of the class
4 answers
asked by
Michael
2,399 views
The Sarasota Police department collected data on the number of car accidents ( X ) that occur each day on a certain stretch of
4 answers
asked by
Jake
4,167 views
1. Find the indicated probability.
In a survey of 300 college graduates, 63% reported that they entered a profession closely
3 answers
asked by
Snotunicorn
2,147 views
Working of a problem--I have found the mean, variance and the standard deviation from the following info:
The probability that a
4 answers
asked by
Lori
3,212 views
Suppose adults in a particular town drive a mean of 65 mph with a standard deviation of 15 mph. Using the normal curve table,
a.W
3 answers
asked by
Jacky
1,739 views
the pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 270
4 answers
asked by
n
724 views
Use the Empirical Rule to answer each question.
During 1 week an overnight delivery company found that the weights of its parcels
4 answers
asked by
rose
2,029 views
Suppose babies born in a large hospital have a mean weight of 3181 grams, and a standard deviation of 526. If 97 babies are
4 answers
asked by
kyle
4,985 views
"suppose that IQ scores have a bell-shaped distribution with a mean of 97 and standard deviation of 17.Using empirical rule,
4 answers
asked by
Tasha
3,090 views
Suppose that 8% of a certain batch of calculators have a defective case, 11% have
defective batteries, and 3% have both of these
4 answers
asked by
Anonymous
1,906 views
Stuck with 2 questions. Need of assistance before tomorrow.
Question 1. A summer camp has seven 4.6m canoes, ten 5.0m canoes,
3 answers
asked by
Aurora
2,593 views
In a normal distribution, 4% of the distribution is less than 53 and 97% of the distribution is less than 65.i.Find the mean and
5 answers
asked by
Raj
707 views
The probability distribution of the number of accidents in Grand Rapids, Michigan, each day is given by
x 0 1 2 3 4 5 P(x) .20
4 answers
asked by
Tyson
1,112 views
Among 17 metal parts produced in a machine shop, 6 are defective. If a random sample of four of these metal parts is selected,
3 answers
asked by
Kate
999 views
the probabilities that a customer will rent 0 1 2 3 and 4 DVDs on a single visit to the rental store are 0.15, 0.25, 0.3, 0.25
3 answers
asked by
Meg
2,511 views
If 3% of electric bulb produced by a company are defective find the probability that in a sample 100bulbs
(a) 0 (b)1 (c)2 (d)3
5 answers
asked by
Collins
1,638 views
Suppose that 40% of all college students smoke cigarettes. A sample of 10 is selected randomly. What is the probability tha t
a
3 answers
asked by
Destinee
1,594 views
A brewery's filling machine is adjusted to fill bottles with a mean of 31.5 oz. of ale and a variance of 0.003. Periodically, a
4 answers
asked by
Tom 6
1,230 views
IQ scores are normally distributed with a mean u = 100 and a standard deviation o =15. Based on distribution, determine
% of IQ
4 answers
asked by
Dianne
3,512 views
To estimate the mean height population of male students on your campus, you will measure and SRS of students. Heights of people
3 answers
asked by
Susan
4,885 views
The monthly income of residents of Daisy City is normally distributed with a mean of $3000 and a standard deviation of $500.
a.
4 answers
asked by
V
1,377 views
A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.50,
4 answers
asked by
darius
5,958 views
At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 24
3 answers
asked by
Daniela
343 views
High temperatures in a certain city for the month of August follow a uniform distribution over the interval 65°F
to 87°F. What
4 answers
asked by
swindham
986 views
A manufacturer of cotter pin know that 5% of his product is defective. If he sells cotter pins in boxes of 100 pins find the
3 answers
asked by
Larissa
1,227 views
The GPA at a particular school has an average of 2.89 with a standard deviation of 0.63. A random sample of 38 students from
3 answers
asked anonymously
47 views
An average of 1.4 private airplanes arrive per hour at an airport.
Let x denote the number of private airplanes that will arrive
3 answers
asked by
maggie
955 views
Suppose x has a normal distribution with mean μ = 35 and standard deviation σ = 9.
(a) Describe the distribution of x values
3 answers
asked by
larae
1,109 views
Suppose a baseball player had 211 hits in a season. In the given probability distribution, the random variable X represents the
4 answers
asked by
Amanda
3,708 views
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