Question

a)The probability that a person has blood type A is .30. The Red Cross selects two...

a)The probability that a person has blood type A is .30. The Red Cross selects two persons at random. Find the probability that the first person has blood type A and the second person does not have blood type A.

b) The probability that a person drinks at least five cups of coffee a day is .25, and the probability that a person has a high blood pressure is .10. Assuming that these two events are independent, find the probability that a person selected at random drinks less than five cups of coffee a day and has a high blood pressure.

Homework Answers

Answer #1

The solution to this problem is given by

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The American Red Cross says that about 45% of the U.S. population has Type O blood,...
The American Red Cross says that about 45% of the U.S. population has Type O blood, 40% Type A, 11% Type B, and 4% Type AB. Suppose we select 5 blood donors at random. What is the probability that the fifth donor is the first donor with Type O blood? What is the probability exactly two of the five donors will have Type O blood? What is the probability none of the five donors will have Type O blood? What...
A person with type A blood can donate red blood cells to people with type A...
A person with type A blood can donate red blood cells to people with type A or type AB blood. About 31% of the US population has type A blood. University High held a blood drive where 50 students donated blood. What is the probability that at least 17 of the students had type A blood?
(10 pts) In a large town, one person in 80, on average, has blood type X....
(10 pts) In a large town, one person in 80, on average, has blood type X. If 200 blood donors are taken at random, find an approximation to the probability that they include at least five persons having blood type X. How many donors must be taken at random in order that the probability of including at least one donor of type X shall be 0.9 or more? ​
The probability that a person in the United States has type B​+ blood is 12%. 5...
The probability that a person in the United States has type B​+ blood is 12%. 5 unrelated people in the United States are selected at random. Complete parts​ (a) through​ (d). ​(a) Find the probability that all four have type B​+ blood.The probability that all four have type B​+ blood is? ​(Round to six decimal places as​ needed.) ​(b) Find the probability that none of the four have type B​+ blood.The probability that none of the four have type B​+...
The probability that a person in the United States has type B + blood is 11%....
The probability that a person in the United States has type B + blood is 11%. Three unrelated people in the United States are selected at random. Complete parts (a) through(d). (a) Find the probability that all three have type B+ blood? (Round to six decimal places as needed.) (c) Find the probability that at least one of the three has type B+ blood.(Round to three decimal places as​ needed.) Which of the events can be considered​ unusual? Explain. Select...
1. the probability that a person in the united state has a type O+ blood is...
1. the probability that a person in the united state has a type O+ blood is 38% . twenty unrelated are selected at random . find the probability that atleast one of the twenty has type o+ blood ? 2. given that the population is approximately normally distrubuted with mean = 45 and a standard deviation of = 6 find the vaule of the 30th precentile of the datat vaule
The probability that a person has type B blood is 0.2158 and the probability that a...
The probability that a person has type B blood is 0.2158 and the probability that a person is female with B blood is 0.2577. Because these events are not equal, are they dependent? And the multiplication rule is P(A and B) = P(A) P (B l A) I'm having trouble with this equation. My question is to justify my conclusion that these are dependent events using the appropriate rule of probability (which I think is the multiplication rule). Please help!...
Of all people in one population, 21% have high blood pressure and 36% are overweight. In...
Of all people in one population, 21% have high blood pressure and 36% are overweight. In addition, 42% of people who are overweight also have high blood pressure. Let H represent the event that a person has high blood pressure, and O represent the event that a person is overweight. In each part of this question, you must first express each probability in terms of the events H and O and justify any computation through the use of a formula....
1. If a person that has blood type O has a child with a person that...
1. If a person that has blood type O has a child with a person that has blood type AB, what is the probability that the child will be blood type A? a. 0% b. 25% c. 50% d. 75% e. 100% 2. Red-green color blindness is inherited through an X-linked, recessive allele (b). Two parents, Fred and Ginger, have normal vision. They have two daughters, Takiyah and Kelly, who also have normal vision, and a color-blind son, David. What...
Suppose the probability that a person has type O- blood is 0.05. Consider a group of...
Suppose the probability that a person has type O- blood is 0.05. Consider a group of 200 people. a. What is the probability that exactly 3 people of the people in the group have type O- blood? (3 points) b. Show that this binomial distribution satisfies both conditions needed to use the normal approxi- mation to the binomial. (2 points) c. Using the normal approximation to the binomial, find the probability that at least 13 people in the group have...