25 results.
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Question in Julie's workspace
Application of the Poisson distribution given expected number of events per interval.
Finding probabilities using the Poisson distribution.
rebelmaths
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Question in Clodagh's workspace
rebelmaths
Application of the binomial distribution given probabilities of success of an event.
Finding probabilities using the binomial distribution.
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Question in Content created by Newcastle University
A weighted coin with given P(H),P(T) is tossed 3 times. Let X be the random variable which denotes the longest string of consecutive heads that occur during these tosses. Find the Probability Mass Function (PMF), expectation and variance of X.
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Question in Content created by Newcastle University
Application of the Poisson distribution given expected number of events per interval.
Finding probabilities using the Poisson distribution.
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Question in Content created by Newcastle University
Given a probability mass function P(X=i) with outcomes i∈{0,1,2,…8}, find the expectation E and P(X>E).
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Question in Content created by Newcastle University
Application of the binomial distribution given probabilities of success of an event.
Finding probabilities using the binomial distribution.
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Question in Bill's workspace
Application of the Poisson distribution given expected number of events per interval.
Finding probabilities using the Poisson distribution.
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Question in Bill's workspace
Question on the exponential distribution involving a time intervals and arrivals application, finding expectation and variance. Also finding the probability that a time interval between arrivals is less than a given period. All parameters and times randomised.
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Question in Bill's workspace
Exercise using a given uniform distribution X, calculating the expectation and variance. Also finding P(X≤a) for a given value a.
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Question in Bill's workspace
Application of the binomial distribution given probabilities of success of an event.
Finding probabilities using the binomial distribution.
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Question in Julie's workspace
X∼Binomial(n,p). Find P(X=a), P(X≤b), E[X],Var(X).
rebelmaths
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Question in Content created by Newcastle University
Using a random sample from a population with given mean and variance, find the expectation and variance of three estimators of μ. Unbiased, efficient?
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Question in Content created by Newcastle University
Given a discrete random variable X find the expectation of 1/X and eX.
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Question in Content created by Newcastle University
The random variable X has a PDF which involves a parameter c. Find the value of c. Find the distribution function FX(x) and P(a<X<b).
Also find the expectation E[X]=∫∞−∞xfX(x)dx.
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Question in Content created by Newcastle University
Exercise using a given uniform distribution Y, calculating the expectation and variance as well as asking for the CDF. Also finding P(b<Y<c) for given values of b,c.
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Question in Content created by Newcastle University
Exercise using a given uniform distribution Y, calculating the expectation and variance as well as asking for the CDF. Also finding P(Y≤a) and P(b<Y<c) for a given values a,b,c.
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Question in Content created by Newcastle University
Given three linear combinations of four i.i.d. variables, find the expectation and variance of these estimators of the mean μ. Which are unbiased and efficient?
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Question in Content created by Newcastle University
Given a piecewise CDF FX(b) which is discontinuous at several points, find the probabilities at those points and also find the value of FX(b) at a continuous point and the expectation.
This cdf is a step function and is therefore the cdf of a discrete random variable. This should be stated somewhere in the statement or the solution. Apart from this the question is correct.
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Question in Content created by Newcastle University
Y∼Poisson(p). Find P(Y=a), P(Y>b), E[Y],Var(Y).
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Question in Content created by Newcastle University
W∼Geometric(p). Find P(W=a), P(b≤W≤c), E[W], Var(W).
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Question in Content created by Newcastle University
X∼Binomial(n,p). Find P(X=a), P(X≤b), E[X],Var(X).
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Question in Content created by Newcastle University
Given the PDF for Y∼Exp(λ) find the CDF, P(a≤Y≤b) and E[Y],Var(Y)
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Question in Content created by Newcastle University
Application of the binomial distribution given probabilities of success of an event.
Finding probabilities using the binomial distribution.
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Question in Bill's workspace
Two numbers from a set of 5 numbers are chosen at random, without replacement. Find the distribution X of their sum and E[X].
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Question in Bill's workspace
Given a probability mass function P(X=i) with outcomes i∈{0,1,2,…8}, find the expectation E and P(X>E).