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Probability and Statistics
Page 10
Questions (4,622)
As in the last video, let X=\Theta +W, where \Theta and W are independent normal random variables and W has mean zero.
a) Assume
2 answers
asked anonymously
147 views
Suppose that \Theta takes values in [0,1] and its PDF is of the form
f_{\Theta }(\theta )= a\theta (1-\theta )^2,\ \ \
2 answers
asked anonymously
223 views
Let X be an exponential random variable and let Y = a*X + b. What are the conditions for Y to be exponential?
7 answers
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silly_muffin
97 views
This figure below describes the joint PDF of the random variables X and Y. These random variables take values in [0,2] and
4 answers
asked by
silly_muffin
157 views
A sample of 125 is drawn form population with proportion equal to .065 determine the probability of success
A 80 or fewer
2 answers
asked by
Birhanu
127 views
The expected value of a non-negative continuous random variable X, which is defined by
E(X) = β« x * fx(x) dx with lower limit 0
2 answers
asked by
silly_muffin
108 views
The random variables X and Y are distributed according to the joint PDF:
The joint PDF has the value of a*x^2 if 1 <= x <= 2 and
2 answers
asked by
silly_muffin
113 views
The random variables X and Y are distributed according to the joint PDF:
It has the value of a*x^2 if 1 <= x <= 2 and 0 <= y <=
4 answers
asked by
silly_muffin
155 views
[mathjaxinline]\, X_ i \,[/mathjaxinline] follows a shifted exponential distribution with parameters [mathjaxinline]\, a \in
4 answers
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122 views
Let πβΌπ€ππ(π), π>0. What is the moment generating function (MGF) ππ(π‘) of π?
exp(βππ‘)
2 answers
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97 views
Let Y be a normal random variables, with mean 3 and variance 16.
Let V = (4-Y)/3 Find the variance of V
2 answers
asked by
silly_muffin
132 views
1, 40% of the days tibs are available in the banchs cafeteria. Abdul is eating in banchs cafeteria for 10 days.
B, what is the
2 answers
asked by
Zed smart
112 views
1,assume test consists of 10 multiple choice questions with having 4 answer possibilities if students randomly guesses all
2 answers
asked by
Zed smart
132 views
Suppose that X_1=\Theta +W_1 and X_2=2\Theta +W_2, where \Theta ,W_1,W_2 are independent standard normal random variables. If
2 answers
asked anonymously
170 views
Please show your work
5. Teesha is in the french club. There are 19 students in the club. The French teacher will pick two
7 answers
asked by
kiki
132 views
A sample of 125 is drown population with proportion equal to.065. determine the probability of observing
A 80 or fewer successes
2 answers
asked by
Birhanu
82 views
Jacob mixes the letters J, K, L, J, K, M, N, and P thoroughly. Without looking, Terry draws one letter. Expressed as a fraction,
25 answers
asked by
hbfifedfh
168 views
bot answer this question Eva wants to know the probability of tossing βheadsβ at least three times out of five. She used the
6 answers
asked by
hbfifedfh
100 views
Jeremy decides to roll a die and toss a coin make a tree diagram
2 answers
asked anonymously
107 views
If a plate of a car consists of two letters and four digits and one car is chosen at random, then find the probability that the
2 answers
asked by
Abraham
162 views
As in the last video, let X=delta+W, where delta and W are independent normal random variables and W has mean zero.
1. Assume
2 answers
asked by
Azerbaijan
145 views
As in the last video, let X=delta+W, where delta and W are independent normal random variables and W has mean zero.
1. Assume
2 answers
asked by
Ramya
132 views
Suppose that in a town, 800 people are selected by random types of sampling methods. 420 go to work by car, 360 go to work by
2 answers
asked anonymously
88 views
A couple has three children. Assuming independence and that the probability of a boy is 1/2, determine the probability that at
2 answers
asked anonymously
103 views
You have seven $1 bills, three $5 bills, five $10 bills, and five $20 bills in your wallet. You select a bill at random. Without
2 answers
asked by
oh
89 views
Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there
2 answers
asked by
oh
72 views
A spinner is divided into 9 equal sections numbered from 1 to 9. You spin the spinner once. What is P(not odd)?
2 answers
asked by
oh
98 views
a bag contains 3 blue marbles 9 green marbles and 11 yellow marbles twice you draw a marble and replace it. find P(blue, then
2 answers
asked by
mars
84 views
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then
4 answers
asked by
stream "bite me" by enhypen
107 views
You pick a number between 1,000 and 5,000. Then you flip a coin. Identify if these two events are independent or dependent.
2 answers
asked by
slayrat
88 views
the principal uses a computer to randomly to randomly select the name of a student from all the students in the school. with the
2 answers
asked by
slayrat
116 views
A sporting goods store received an order of 80 baseball caps, of which 12 are green. If 1 of the 80 caps is selected at random,
2 answers
asked by
slayrat
95 views
Classify each pair of these events as either independent or dependent. You select a number 1 through 6 by tossing a standard
2 answers
asked by
slayrat
74 views
Let \, X\, be a random varible with invertible cdf \, F_ X. Define another random variable \, Y=F_ X(X). Find the cdf F_ Y of \,
2 answers
asked anonymously
81 views
A defective coin minting machine produces coins whose probability of Heads is a random variable [mathjaxinline]Q[/mathjaxinline]
2 answers
asked anonymously
106 views
Let X_1, \ldots , X_ n \stackrel{iid}{\sim } \mathbf{P} for some distribution \, \mathbf{P}\,, and let F denote its cdf. Let F_
2 answers
asked anonymously
141 views
Let X_1, \ldots , X_ n \stackrel{iid}{\sim } \mathbf{P} for some distribution \, \mathbf{P}\,, and let F denote its cdf. Let F_
2 answers
asked anonymously
99 views
Let X and Y be real-valued random variables, both distributed according to a distribution \, \mathbf{P}.\, (We make no
2 answers
asked anonymously
102 views
Let \mathbf{p}^0 be the discrete pmf that we wish to test the goodness of fit for an observed sequence of iid samples. Let
4 answers
asked anonymously
85 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
2 answers
asked by
stream "bite me" by enhypen
107 views
Below are the results of tossing a number cube 8 times. Find the experimental probability of tossing an even number.
3, 4, 1, 2,
2 answers
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stream "bite me" by enhypen
68 views
The sample space for a roll of two number cubes is shown in the table.
A 6 by 6 table of ordered pairs is shown. β’ A single
2 answers
asked by
stream "bite me" by enhypen
79 views
The sample space for a roll of two number cubes is shown in the table.
A 6 by 6 table of ordered pairs is shown. β’ A single
2 answers
asked by
stream "bite me" by enhypen
76 views
A cereal company is giving away 1 of 6 different prizes in each box of cereal. Describe a simulation you could use to estimate
2 answers
asked anonymously
77 views
Suppose you spin the spinner once. Find the probability.
A circle is divided equally into eight sections.Β· Two of the sections
17 answers
asked by
stream "bite me" by enhypen
165 views
A spinner has three equal sections: blue, green, and purple. Josiah spins the spinner and tosses a coin. Which shows the sample
2 answers
asked by
Daley jhonson
129 views
The manager of the local branch of saving bank has determined that 40% of all depositors have multiple accounts at the bank if a
2 answers
asked by
Birhanu
93 views
A basket of fruits contains 5 bananas, 8 mangoes, and 7 apples. Two fruits are randomly selected without replacement. Calculate
2 answers
asked by
:(
109 views
The Beeville City Council surveyed 500 Beeville citizens. Of those surveyed, 350 citizens named summer as their favorite season.
2 answers
asked by
James Glass
81 views
At a summer camp, 20% of the students come from out of state. Megan wants to simulate cabins of 8 campers. She generates random
2 answers
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stream "bite me" by enhypen
72 views
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