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Questions (8)
Consider a group of n≥4 people, numbered from 1 to n. For each pair (i,j) with i≠j, person i and person j are friends, with
5 answers
1,179 views
With A,B,X defined as before, determine whether the following statements are true or false:
1. A and B are independent. (T/F) 2.
1 answer
1,046 views
Bob has two coins, A and B, in front of him. The probability of Heads at each toss is p=0.5 for coin A and q=0.9 for coin B.
Bob
1 answer
1,543 views
Bob has two coins, A and B, in front of him. The probability of Heads at each toss is p=0.5 for coin A and q=0.9 for coin B.
Bob
0 answers
844 views
Let X,Y,Z be independent discrete random variables with
E[X]=2, E[Y]=0, E[Z]=0, E[X^2]=20 E[Y^2]= E[Z^2]=16, and
2 answers
1,937 views
Let A,B,C be three events, and let X=IA, Y=IB, and Z=IC be the associated indicator random variables.
We already know that X⋅Y
1 answer
1,658 views
Determine whether each of the following statements about events X, Y, Z is always true or not.
1. Suppose that X, Y, and Z are
0 answers
1,838 views
A set of 60 different days is selected from a given year. assume that all sets of cardinality 60 are equally likely. Also, for
0 answers
1,544 views
Answers (8)
1. 0 2. 320 3. 0 E[A*B] = E[A] * E[B] = E[X(Y+Z)] * E[X*Y] = (E[X*Y + Y*Z]) * E[X]*E[Y] = (E[X]*E[Y] + E[Y]*E[Z]) * E[X]*E[Y] since E[X]=2,E[Y]=0 = ((2 * 0) + (0 * 0) ) * 2*0 since E[Y]=0,E[Z]=0 E[AB] = 0
1. The event Ac∩B∩C. Answer: (1-x)*y*z --Divine you right 2. At most two of the events A,B,C occurred. Answer: 1-(X*Y*Z) Please share answers to other questions as well.
Hi Anonymous, Can you share answers to any of the other questions ....?
I have posted 7 Probability questions and i am willing to pay $ for the solution.
I have posted 7 Probability questions and i am willing to pay $ for the solution.
I have posted 7 Probability questions and i am willing to pay $ for the solution.
I have posted 7 Probability questions and i am willing to pay $ for the solution.
I have posted 7 Probability questions and i am willing to pay $ for the solution.
