Mathematics, 03.03.2021 01:00, chicacrazy8338
3. A discrete random variable X has the following probability distribution:
77 78 79 80 81
P) 0.15 0.15 0.20 0.40 0.10
Compute each of the following quantities.
a. P(80)
b. P(X > 80).
c. P(X S80).
d. The mean p of X.
e. The variance a? of X.
f. The standard deviation o of X.
Answers: 3
Mathematics, 21.06.2019 16:00, gavianacandelar8522
Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6
Answers: 2
Mathematics, 21.06.2019 17:00, Zykuko
Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."
Answers: 2
3. A discrete random variable X has the following probability distribution:
77 78 79 80 81
P)...
P)...
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