Questions LLC
Login
or
Sign Up
Ask a New Question
Probability and Statistics
Page 8
Questions (4,622)
On any given day, mail gets delivered by either Alice or Bob. If Alice delivers it, which happens with probability 1/4, she does
4 answers
asked by
sagar
3,441 views
1. The table shows the results of spinning a four-colored spinner 50 times. Find the experimental probability and express it as
40 answers
asked by
DragonBornFU5R0D48
5,611 views
Of 500 employees, 200 participate in a company's profit sharing plan(P), 400 have major insurance coverage(M), & 150 employees
4 answers
asked by
Jean
1,566 views
3) As on previous let X_1….X_n be i.i.dwith pdf
f_θ(x)= θx^(θ-1)1(0≤θx≤1) where θ>0 a) Assume we do not actually get
3 answers
asked by
juanpro
559 views
Suppose that X, Y, and Z are independent random variables with unit variance. Furthermore, E[X] )= 0 and E[Y] = E[Z] = 2. Then,
2 answers
asked by
silly_muffin
248 views
Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing three red marbles, three green ones,
3 answers
asked by
Ana
3,003 views
Hallie is trying to win the grand prize on a game show. Should she try her luck by spinning a wheel with 6 equal sections
1 answer
asked by
stream "bite me" by enhypen
97 views
Consider a Bernoulli process, with arrival probability at each time slot equal to p=1/3.
An observer arrives at time slot 10 and
5 answers
asked by
Ann
2,504 views
Tax returns filed manually have a 20% chance of containing errors, while tax returns filed electronically have a 0.05% chance of
2 answers
asked by
kuol wor
92 views
Each magazine that Charlie reads takes an amount of time that follows an exponential distribution with mean 10 minutes. The
7 answers
asked by
Arrival
2,647 views
The joint PMF, pX,Y(x,y), of the random variables X and Y is given by the following table:
(see: the science of uncertainty) 1.
3 answers
asked by
RVE
7,227 views
Makalo has five cards, numbered 1 to 5. He picks one card at random, replaces that card back in with the others, and then picks
2 answers
asked by
Antony Joseph
107 views
a single standard number cube is tossed. what is the probability of getting a 4 or 5?
27 answers
asked by
sincerely
169 views
Two urns both contain green balls and red balls. Urn contains six green balls and four red balls and urn to contains eight green
1 answer
asked anonymously
92 views
2. AllElectronics caries 1000 products, P1, … P1000. Consider customers Ada, Bob, and Cathy such that Ada and Bob purchase
4 answers
asked by
Edward
1,496 views
A multiple-choice test has 48 questions, each with four
response choices. If a student is simply guessing at the answers, a. What
3 answers
asked by
Nickie
1,056 views
Suppose Y ∼ N(μ=0, σ). Find σ so that the normal population contains 90% of its probability between -1 and 1. Please round
3 answers
asked by
Help Please!!!
560 views
A high school class conducts a survey where students are asked about their eye color and whether or not they wear glasses. The
1 answer
asked by
kenZZZ
181 views
An experiment was conducted where two dice were rolled 50 times. The sum of the faces are recorded in the chart.
What is the
5 answers
asked by
How many possible outcomes are there in a single r
274 views
Relative Frequency and Probability
A hen laid exactly 6 eggs each week for 3 weeks of a 12 week period. The same hen also laid 4
21 answers
asked by
How many possible outcomes are there in a single r
205 views
A jar contains 8 red marbles numbered 1-8 and 6 blue marbles numbered 1-6. Marble drawn at random from the jar. Find the
1 answer
asked anonymously
86 views
The letter tiles C, A, R, E, and S are placed in a box. Without looking, Jorelle picks a letter tile from the box and records
5 answers
asked by
just living :>
241 views
A batch of 350 raffle tickets contatins 4 winning tickets. You buy 4 tickets. What is the probability that you have:
a.) No
5 answers
asked by
Sharon
3,784 views
A bag contains 9 red chips and 12 blue chips. Two chips are selected randomly without replacement from the bag. What is the
4 answers
asked by
J
8,696 views
Suppose that X, Y, and Z are independent random variables with unit variance. Furthermore, E[X] )= 0 and E[Y] = E[Z]. Then,
2 answers
asked by
silly_muffin
188 views
Three coins are tossed into the air simultaneously and for each coin it is recorded whether an eagle or a sun appears. What is
1 answer
asked anonymously
88 views
2 identical baskets A and B contain white and red balls. Basket A contains 7 White balls and 3 red balls while basket B contains
1 answer
asked by
Kharl
216 views
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
The diagram below shows
1 answer
asked by
Jeff
109 views
If 25% of U.S. federal prison inmates are not U.S. citizens, find the probability that two
randomly selected federal prison
1 answer
asked by
Randy
90 views
Suppose you cast and keep casting a die until you get either number 5 or 6? What is the probability that you will stop after
1 answer
asked by
xiny
73 views
Mr. Challenger randomly selected two apples without replacing the first apple from a crate containing 10 green apples, 14 red
3 answers
asked by
Denise
639 views
1) Let X and Y be independent continuous random variables that are uniformly distributed on (0,1) . Let H=(X+2)Y . Find the
3 answers
asked by
anonymous1
1,466 views
Let 𝑋 and 𝑌 be independent continuous random variables that are uniformly distributed on (0,1) . Let 𝐻=(𝑋+2)𝑌 .
7 answers
asked by
yyyyz
3,092 views
1 Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored
26 answers
asked by
Madison
4,989 views
Let X be a random variable that takes non-zero values in [1,∞), with a PDF of the form
fX(x)=⎧⎩⎨cx3 if x≥1,
5 answers
asked by
A
1,182 views
Let X be a standard normal random variable. Let Y be a continuous random variable such that
fY|X(y|x)=1/√2π*exp(−(y+2x)^2/2)
6 answers
asked by
TBONE
1,351 views
An assembly consists of three mechanical components. Suppose that the probabilities that the first, second, and third components
4 answers
asked by
Maureen
6,474 views
You observe k i.i.d. copies of the discrete uniform random variable Xi , which takes values 1 through n with equal probability.
D
10 answers
asked by
Lex
7,757 views
Using the ELT16 life table, calculate the deferred probability of death for a newborn 190 for each value of n. Given this
3 answers
asked by
Kailash
214 views
Imagine that you have a coin and you are flipping it 10 times. After the 5th toss the coin has come up heads 5 times in a row.
2 answers
asked by
Hanif
605 views
A certain disease has an incidence rate of 0.7%. If the false negative rate is 7% and the false positive rate is 1%, compute the
5 answers
asked by
john
1,100 views
For this section, use the following distributions: 1) A direwolf has a 70% probability of killing a stag upon encounter; 2) a
2 answers
asked by
Kathleen
493 views
A multiple choice test has 16 questions. Each question has 4 possible answers with
only one is correct. Assume that all questions
4 answers
asked by
hassan
1,339 views
The life of automobile voltage regulators has an exponential distribution with a mean life of six years. You purchase an
4 answers
asked by
ash
2,119 views
At the first tri-city meeting, there are 8 people from town A, 7 people from town B, and 5 people from town C. If a council
4 answers
asked by
Janet
2,801 views
The random variable X has a PDF of the form
fX(x)={1x2,0,for x≥1,otherwise. Let Y=X2 . For y≥1 , the PDF of Y it takes the
4 answers
asked by
Anon
1,978 views
Consider the same model of two rolls of a tetrahedral die, with all 16 outcomes equally likely. Find the probability of the
7 answers
asked by
two time
2,618 views
Assume that the salaries of elementary school teachers in the U.S. are normally distributed with a mean of $37,000 and standard
3 answers
asked by
Anonymous
1,611 views
Let X and Y equal the outcomes when two fair six-sided dice are rolled. Let
W = X + Y. Assuming independence, find the p.m.f. of
2 answers
asked by
Sandy
870 views
An urn contains 5 red balls and 10 white balls. 6 balls are randomly drawn and not replaced. What is the probability that 3 or
3 answers
asked by
Gina
665 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (30)
Algebra
Alphabet and Letter
Alphabet and Letters
Calculus
College-level Mathematics
Dependent and Independent Events
Diseases
Eye color inheritance
Games and Puzzles
Intelligence Testing
Math
Math and Science
Math and Statistics
Math Education
Math Problem Solving
Mathematics
Mathematics and Data Analysis
Mathematics and Numbers
Mathematics and Probability
Mathematics and Statistics
Mathematics Education
Mathematics/Statistics
Physics or Electrical Engineering
Probability
Programming/Computer Science
Small Business Failures
Soccer
Statistics
Traditional Games
Workplace Training