p(a)= .21, p(b)=.43, and event a and b are independent. what is p(a or b)?
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p(a)= .21, p(b)=.43, and
given data
P(A) = 0.21
P(B) = 0.43
independent events
P(AB) = ?
Step by step
Solved in 2 steps
- Q7 (a) 1% of customers at the snack counter of a movie theater buy soft drinks. Among those who buy soft drinks, 54% also purchase popcorn. (i) What is the probability that a customer at the counter buys a drink and popcorn? Theaters use this type of calculation to decide which products should be bundled to appeal to Based on the probability so calculated, what is your recommendation customers. Wwhether to bundle the products or not? (ii) If the proportion of customer who buys popcorn is 69% . Then find the probability that a customer will buy a popcorn or a soft drink? (b) Some electronic devices are better used than new: The failure rate is higher when they are new than when they are six months old. For example, 43.10% of the personal music players of a particular brand have a flaw. If the player has the flaw, it dies in the first six months. If it does not have this flaw, then only 3.100% fail in the first six months. Yours died after you had it for three months. What are the…Suppose the probability of winning the Powerball lottery is 0.2, while the probability of being abducted by aliens is 0.6. If these two events are independent, what is the probability of winning Powerball but not being abducted? (A) 0.48 (B) 0.32 (C) 0.08 (D) 0 (E) 0.12 (F) 0.6 (G) 1 (Н) 0.2 OB OD E H.Which of the following numbers can be probabilities of events? (Select all that apply.) A. (71/68), B. (17/16), C. (47/42), D. (78/79), E. (29/63), F. (5/4), G. (56/61), H. (38/33), I. (22/23), J. (81/80), K. (28/25), L. (89/90),
- Just need part dHow might the occurrence of one event in your life or career impact the probabilities of another event? Are these events independent or dependent? Why? short answerSuppose the probability of winning the Powerball lottery is 0.2, while the probability of being abducted by aliens is 0.6. If these two events are independent, what is the probability of winning Powerball but not being abducted? (A) 0.48 (B) 032 (C) 0.08 (D) 0 (E) 0.12 (F) 0.6 (G) 1 (H) 0.2
- At a high school, the probability that a student takes a science class and a history class is 0.38. The probability that a student takes a science class is 0.79 and the probability that the student takes a history class is 0.69. What is the probability (rounded to the nearest hundredth) that a student takes a history class given that the student is taking a science class? P(AN B) P(B) Hint: P(A|B) = A. 0.48 B. 0.75 C. 0.30 D. 0.87Number 49 parts A and BLet ?D be the event that a student likes dancing and ?A be the event that a student likes athletics. Suppose that ℙ(??|?)=P(Dc|A)= 0.44, ℙ(?|??)=P(D|Ac)= 0.76, and ℙ(??)=P(Ac)= 0.65. What is the conditional probability that a student likes athletics given they do not like dancing?
- hwm7 7 Use the following probabilities to answer the question. P(A) =0.6, P(B)=0.35 AND P(AandB)=0.05. P(notB notA)= _%When looking at the association between the events “likes donuts” and “owns a dog,” if the events are independent, then the probability: P (owns a dog| likes donuts) is equal to what expression? Explain your answer.I'm confused as to what distrubution I should use to solve this probability. When tall and colorful plants are crossed with short and colorless plants, four types of plants will result: tall and colorful, tall and colorless, short and colorful, and short and colorless with corresponding probabilities: 0.37, 0.42, 0.11, and 0.10. Ten plants are selected. Find the probability that 5 will be tall and colorful, 2 will be tall and colorless, 2 will be short and colorful, and 1 will be short and colorless.
