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Probability and Statistics
Page 5
Questions (4,610)
Bowls A and B contain a number of white and red balls. Clark repeatedly selected a ball from both bowls and recorded the results
3 answers
asked by
Me
286 views
Three (3) scholars will be picked randomly from a set of qualifiers consisting of 2 girls and 4 boys. What is the probability
2 answers
asked by
Myst
90 views
A spinner has 8 equally sized sections labeled as A,B,C,D,EF,G,H IN 160 spins how many time can you expect to spin on
2 answers
asked by
Me
119 views
Let Sn be the number of successes in n independent Bernoulli trials, where the probability of success at each trial is 1/3.
3 answers
asked by
Anonymous
2,248 views
Probability and statistics unit test part 1
2 answers
asked by
Kelly
208 views
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0<p<1.
1. Let A be
6 answers
asked by
Johan
3,439 views
Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $34,000 and
5 answers
asked by
shannen
3,490 views
We have two fair three-sided dice, indexed by i=1,2. Each die has sides labelled 1, 2, and 3. We roll the two dice
5 answers
asked by
jon
7,295 views
Let k be a positive integer and let X be a continuous random variable that is uniformly distributed on [0,k]. For any number x,
2 answers
asked anonymously
209 views
If the arrow is spun twice, what is the probability of getting
a, two 3s b, two 4s c,a 1 followed by a 2 d,a 4 followed by a 3
2 answers
asked by
peter
83 views
In this problem, we study a simple noisy communication channel. Suppose that X is a binary signal that takes value -1 and 1 with
2 answers
asked anonymously
143 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
2 answers
asked anonymously
176 views
Let X be a standard normal random variable. Let Y be a continuous random variable such that
f_{Y|X}(y|x)=\frac{1}{\sqrt{2\pi
2 answers
asked anonymously
122 views
Number of White Balls Selected Number of Red Balls Selected
Bowl A 45 55 Bowl B 60 40 Bowls A and B contain a number of white and
3 answers
asked by
jerem
119 views
We saw that if we want to have a probability of at least 95% that the poll results are within 1 percentage point of the truth,
4 answers
asked by
Anonymous
875 views
Problem 1. Marie gives away children toys
Marie distributes toys for toddlers. She makes visits to households and gives away one
4 answers
asked by
Diane Lin
2,228 views
Problem 5. Arrivals during overlapping time intervals
Consider a Poisson process with rate lambda. Let N be the number of
3 answers
asked by
diogenes
1,939 views
Explain the variation between the experimental and theoretical relative frequencies.
6 answers
asked by
:)
121 views
Twenty-six students apply to serve as an usher at a school function. Eight of the those applying are freshmen, 7 are sophomores,
1 answer
asked by
+Dianna+
97 views
Which set of events is dependent?(1 point)
Responses choosing a ball from a bag and then choosing another ball without replacing
1 answer
asked by
deez
131 views
If the table below represents a probability model based on observed frequencies, what is the value of x?
Y C A R E S P(Y) 0.25
6 answers
asked by
just living :>
501 views
Simulation to Predict Probability
Suppose a basketball player typically makes five out of eight foul shots. Question 1 How could
4 answers
asked by
One marble is randomly selected from the bag. In t
205 views
Marie distributes toys for toddlers. She makes visits to households and gives away one toy only on visits for which the door is
2 answers
asked by
Anonymous
143,582 views
For each of the following statements, state whether it is true (meaning, always true) or false (meaning, not always true):
1. Let
4 answers
asked by
Muhammad
1,577 views
Consider a poisson arrival process with rate lambda per hour. To simplify notation, we let a=P(0,1), b=P(1,1) and c=P(2,1),
2 answers
asked by
Ramya
113 views
For each one of the following situations, state whether a Poisson model is a plausible model over the specified time frame.
1.
3 answers
asked by
Anonymous
596 views
Suppose that we have three engines, which we turn on at time 0. Each engine will eventually fail, and we model each engine"s
3 answers
asked by
Noonan
1,339 views
In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for λ and 'mu' for μ. Follow
4 answers
asked by
JuanPro
1,134 views
A jar contains 5 red marbles, numbered 1 to 5, and 12 blue marbles numbered 1 to 12.
a) A marble is chosen at random. If you're
4 answers
asked by
Melanie
7,425 views
a machine has 7 identical components which function independently. the probability that a component will fail is 0.2. the
5 answers
asked by
anonymous
5,284 views
consider a sequence of independent tosses of a biased coin at times k=0,1,2,…,n. On each toss, the probability of Heads is p,
5 answers
asked by
luke
8,788 views
Let k be a positive integer and let X be a continuous random variable that is uniformly distributed on [0,k]. For any number x,
9 answers
asked by
Anonymous
2,685 views
Let k be a positive integer and let X be a continuous random variable that is uniformly distributed on [0,k]. For any number x ,
3 answers
asked by
Rza
536 views
Problem 3. Probability Density Functions
2 points possible (graded, results hidden) For t∈R, define the following two
4 answers
asked by
vvg
1,826 views
The table shows the results of rolling a number cube labeled one through six 50 times.
Number Rolled Frequency 1 7 2 9 3 11 4 6 5
84 answers
asked by
Friendly
19,963 views
1. P(7) (1 point)
1/7 1/8 3/8*** 7/8 2. P(not 7) (1 point) 1/7*** 1/8 5/8 7/8 3. P(a multiple of 2) (1 point) 0.25*** 0.5 0.625
37 answers
asked by
please hepl
9,814 views
A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. What is P(divisible by 2)?
1/3 1/2
18 answers
asked by
MaThSuKs
6,793 views
1. Suppose you spin the spinner once. Find the probability.
R, R, R, R, B, B, G, Y P(yellow) A. 1/8*** B. 1/6 C. 1/4 D. 1/2 2.
40 answers
asked by
slush
9,819 views
There are 5 options on the dessert menu at a restaurant. Erin and Ellen like all of the choices equally, so they each choose a
4 answers
asked by
re
1,331 views
A bag contains 3 black balls, 4 green balls and 5 yellow balls.
a) if two balls are picked at random without replacement, find
6 answers
asked by
kd
2,794 views
Mr. and Mrs. Smith each bought 10 raffle tickets. Each of their three children bought four tickets. If
4280 tickets were sold in
4 answers
asked by
Katie
1,627 views
Consider the Markov chain below. Let us refer to a transition that results in a state with a higher (respectively, lower) index
5 answers
asked by
thirtythree
423 views
a game has players roll either one or two standard dice. which is the total number of possible different outcomes
4 answers
asked by
william
1,250 views
A fair coin is tossed repeatedly and independently. We want to determine the expected number of tosses until we first observe
2 answers
asked by
Volcom
930 views
The Jones family has eight children, all of which are girls. What is the chance that the next child will be a boy? What is the
4 answers
asked by
Nikko
2,902 views
A security code used to consist of two odd digits, followed by four even digits. To allow more codes to be generated, a new
4 answers
asked by
alejandro
1,713 views
A student studying for a vocabulary test knows the meanings of 12 words from a list of 26 words. If the test contains 10 words
5 answers
asked by
titi
4,276 views
Consider again the Markov chain with the following transition probability graph:
This figure depicts a Markov chain with seven
2 answers
asked anonymously
228 views
Exercise: Steady-state calculation
0.0/4.0 points (graded) Consider again the Markov chain with the following transition
2 answers
asked anonymously
374 views
A family has 4 children. A tree diagram or systematic list can be used to show how many ways the children could have been born,
4 answers
asked by
HANNAH
2,227 views
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