67% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Find the probability that the number of U.S. adults who have very little confidence in newspapers is (a) exactly five, (b) at least six, and (c) less than four. (a) P(5)= (Round to three decimal places as needed.) (b) P(x2 6) = (Round to three decimal places as needed.) (c) P(x< 4)= (Round to three decimal places as needed.) Question Viewer

The 10-year survival rate for blood cancer is approximately 12%. If 145 people who have blood cancer are treated for the disease, calculate the probability that: (i) no one will survive for 10 years. (ii) not more than 4 will survive for 10 years.

Based on a survey, assume that 33% of consumers are comfortable having drones deliver their purchases. Suppose we want to find the probability that when six consumers are randomly selected, exactly three of them are comfortable with the drones. What is wrong with using the multiplication rule to find the probability of getting three consumers comfortable with drones followed by three consumers not comfortable, as in this calculation: (0.33)(0.33)(0.33)(0.67)(0.67)(0.67) = 0.0108? Choose the correct answer below. A. The event that a consumer is comfortable with drones is not mutually exclusive with the event that a consumer is not comfortable with drones. B. The probability of the second consumer being comfortable with drones cannot be treated as being independent of the probability of the first consumer being comfortable with drones. O C. There are other arrangements consisting of three consumers who are comfortable and three who are not. The probabilities corresponding to those other…

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Why is it that the  P(3set and V wins)=(0.09+0.0675)? What is the formula of P(3set and V wins)?

Q3: A professor grades homework by randomly choosing 6 out of 12 homework problems to grade. (a) How many different groups of 6 problems are there from the 12 problems? I. (b) Dana did only 6problems of one assignment. What is the probability that the problems she did comprised the group that was selected to be graded.

Q.2         the probability that a missile hit the target is 0.90. If three missile of this type has been fired. Find the probability that  (i) at least 2 hit the target.  (ii) Exactly two hit the target.

The probability that event AA will occur is P(A)=P(A)=0.72. What is the probability (in decimal form) that event AA will not occur? P(¯¯¯A)=P(A¯)= What are the odds for event AA? to What are the odds against event AA? to

qm7 4 Suppose a jar contains 5 red marbles and 19 blue marbles. If you reach in the jar and pull out 2 marbles at random, what is the probability that both are red? % Round to 2 places.

I understand all of this except: Why did the probability start at 125+5 instead of 120+5?