25. A pair of dice is rolled. What is the probability of getting a. a total of 6 or 8? b. a total of at least 25? С. a total of at most 7?

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Q: Consider the hypothesis test below. Ho : P1 – P2 0 The following results are for independent…

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Q: 3. True or false? а. The values of a continuous variable are arrived at by o b. A continuous…

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Q: Do it completely and typewritten for an upvote

A: GIVEN:  the word STATISTICS then no of permutations can be made from the word STATISTICS ?

Q: If probability events A and B are independent what can we be sure of? P(ANB) = P(A) P (B) P(A) +…

A: It is given that The two events A and B are independent.

Q: Consider the random variables X and Y with joint density function. 0 0.5, Y > 0.5).

A: Given,f(x,y)=x+y; 0≤x,y≤10; elsewhere

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A: Here use counting principle

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Q: Activity 5.6 The number of eggs X laid by an insect is known to have a binomial distribution with…

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A: Given that.   X~N( μ , ?^2 )   μ=210     , ?=16   Z-score =( x - μ )/?

Q: 6. The pH water samples from a specific lake is a random variable X with probability density…

A: a) fx=387-x2, 5≤x≤7 EX=∫57xfxdx       =∫57x*387-x2dx      =38*443      =112

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A: Given that  μ = 30 , ? = 4

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Q: For x = 1, 2, 3 and y = 1, 2, let the joint pmf of X and Y be defined by f X,Y (x, y) = (x+y)/21…

A: Given that  The joint probability mass function of X and Y is  f(x,y)=(x+y)/21   , x=1,2,3 and y=1,2…

Q: In a group of 20 friends, 9 like pizza, 11 like coke and 5 like both. If you know someone in the…

A: Given that  Total friends=20 Like pizza=9  Like coke=11 Like both=5

Q: Which of the following is true about the probability density function (pdf) of a continuous random…

A: We have given that the statement about to the probability density function (pdf) of a continuous…

Q: Let X1,..., Xn be a random sample from a uniform distribution on [0, 1], where 0 < 0 < 1. 1. Find…

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Q: I toss a coin 4 times, and let X be defined as the number of heads I observe. Find the range of X,…

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Q: For x = 1, 2, 3 and y = 1, 2, let the joint pmf of X and Y be defined by f X,Y (x, y) = (x+y)/21…

A: Solution: The joint pmf of X and Y is  fX,Y(x,y)=(x+y)21     x=1,2,3    and y= 1,2  The pmf of X and…

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Q: The probability that a cyclist in a bicycle entering the Camp Sinai is O-12; the probalbility that…

A: Solution-: Let, Event A: Vehicle is a cyclist and       Event B: Vehicle is a camper Event that…