Ms Loom is writing a quiz that contains a multiple-choice question with five possible nswers. There is 30% chances that Ms Loom will not know the answer to the question, and she will guess the answer. If Ms Loom guesses, then the probability of choosing the correct answer is 0.20. What is the probability that Ms Loom really knew the correct answer, iven that she correctly answers a question?

Q: DISTRIBUTION A: (discrete) f(x,y)=, for x, y = 1,2,3 36 DISTRIBUTION B: (continuous) f(x, y) = (x +…

A: Note: As per the requirement solving part(a)

Q: • Describe how the values of u and o affect the graph of the normal distribution.

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Q: True or false, the standard deviation of a normally distributed variable can be any real number. A)…

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Q: Discuss a continuous uniform or Rectangular distribution and its properties and show its…

A: A uniform distribution is a type of probability distribution in which all the outcomes are equally…

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A: Given information: T is set of 20 means calculated from finding samples of size 20 from the larger…

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Q: Suppose that F is an exponential distribution with parameter λ = 1 and that G is exponential with λ…

A: Reviewing information, Cdf F~exp(λ=1)Cdf G~exp(λ=2)

Q: X(net gain)              Probabiliy -8                                 .09836 92…

A: X(net gain)              Probabiliy-8                                 .0983692…

Q: • Two independent variables X and Y are set by the tables x -3 1 5 yi 2 4 pi 0,1 0,6 p pi 0,4 0,6…

A: given: Probability distributions of X and Y X and Y are independent variables

Q: The joint distribution of X and Y is given by: f(x.y) = - 3-2y For x = -1,0,2 and y = -1,0. Then k=

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Q: Given that the assumptions of CLT are met, the normal approximation will hold even if the…

A: Solution-: Given that the assumptions of CLT are met, the normal approximation will hold even if the…

Q: Binomial Distribution: (n = 6, p = .2) Find (Use these data in Prob. 1-3) 1) Pr (r 1) 3) Pr (r < 3)

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Q: sen the mean number (to the nearest whole number) of stidents who will finish the e less than I bour…

A: here use property of cumulative distribution

Q: steam and leaf of data                     leaf unit= 10               2       2          59 5…

A: Range= Maximum observation-minimum Observation Here maximum observation= 61 Minimum Observation= 25…

Q: The random variable X has a Poisson distribution such that P(X= 0) = P(X = 1). Calculate P(X= 2).

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Q: B (a) What is the mean difference in GPAS between the two schools? (Use u, - H, where u, is School A…

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Q: You roll a fair six sided die, repeatedly until the sum of all the rolls is greater that 6. Define X…

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Q: Define Fundamentals of Asymptotic Distribution Theory?

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Q: The joint distribution of (X,Y) is given by f(x, y) = k(3x + 2y), x 0,1,2; y = 1,2,3. The marginal…

A: Given: fx,y=k3x+2ywhere x=0,1,2y=1,2,3

Q: Find the characteristic function and cumulant generating function of normal distribution.

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Q: Measurement error that is continuous and uniformly distributed from -3 to +3 millivolts is added to…

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Q: Difference between statistic and parameter with an example.

A: Parameter is the value that summarizes the characteristics of  the entire population . It collects a…

Q: frequency Histogram 7: Income (15,26] (26,36) (36,47) (47, 185 Income in 1000 Histogram 9: Number of…

A: A histogram is one of the graphical representations of the data. In the histogram, several bars…

Q: The table below is the frequency table of the income (x) of 30 employees of a local business (in…

A: The income of 30 employees of a local business are considered.

Q: The Empirical Rule For Normal Distributions (a.k.a the 68-95-99.7 Fule) od 68% 95% 99.7% mean-3s…

A: GIiven that mean =120 ,s.d =10

Q: The time (in minutes) until the next bus departs a major bus depot follows a distribution with f(x)…

A: From the given informations: fx=120,   25&lt;x&lt;45

Q: Independent observations X₁, X₂ and X, come from normal distributions that have the same mean, μ,…

A: Solution

Q: Let X = (X,,X,,. .,x,) be a random sample of size n>2 from a Poisson distribution with parameter ^.…

A: X1, X2, ...., Xn is a random sample of size n ≥2from a Poisson distribution with parameter λ The PMF…

Q: Values are uniformly distributed between 171 and 241. *(Round your answers to 3 decimal places, e.g.…

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Q: For a given a sample {y;}_₁ the unknown population distribution F of Y is estimated by the Empirical…

A: Given information: EDF, Fn(y)=1n∑i=1n1{yi≤y}Sample: {yi}i=1n

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A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: FX is distributed as a continuous uni Form distribution over the interval (ab) prove that D- the…

A: The median of this distribution is equal to its mean:To prove this, we first need to find the median…

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Q: summer rainfall totals, in inches, in a section of the Midwestern United States have approximately a…

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Q: Let a and b are positive constants. If P(2 3) = 0.2. Then a and b equal to: %3D

A: We have to find a and b with the help of given distribution function and probabilities.

Q: f Class Interval fx cf (x - mean)^2 f(x - mean)^2 X- mean Frequency Class Mark 95-99 3 90-94 85-89…

A: Arrange the  Given data is ascending order Class Interval Frequency 60 - 64 4 65 - 69 9 70…

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A: As per the asked by the student we have to solve only part(b) Given that  the distribution of B…

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A: