Concept explainers
NASA and rare planet transits. A “planet transit” is a rare celestial event in which a planet appears to cross in front of its star as seen from Earth. The National Aeronautics and Space Administration (NASA) launched its Kepler mission, designed to discover new planets in the Milky Way by detecting extrasolar planet transits. After 1 year of the mission in which 3,000 stars were monitored, NASA announced that five planet transits had been detected (NASA, American Astronomical Society, January 4, 201 0). Assume that the number of planet transits discovered for every 3,000 stars follows a Poisson distribution with λ = 5. What is the probability that, in the next 3,000 stars monitored by the Kepler mission, more than 10 planet transits will be seen?
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- Section 5.3 Step 1 of 2 : What is the probability that she selects a non-physics major, given that she chooses randomly from only the freshmen? Enter a fraction or round your answer to 4 decimal places, if necessary. Step 2 of 2 : What is the probability that she selects a junior, given that she chooses a physics major? Enter a fraction or round your answer to 4 decimal places, if necessary.arrow_forwardQUESTION 11 A gambler belives that he has learned to predict the color of a card befroe it is drawn from the deck. In order to test this, he predicts a color, draws a card from a fresh deck of 52 cards and observes its color, replaces the card, and then shuffles. He repeats this process 19 times, and finds that he got 15 predictions incorrect. Using a sign test, test the hypothesis that the gambler is getting fewer predictions inccorect than one would expect due to chance. sig = ? QUESTION 12 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Sav 20°F Mostly sum hp f9 144 tio %$4 & * 5. 7. 8. R. Y U F H. Karrow_forwardA randomly selected person has a birthday in a month beginning with J .arrow_forward
- section 5.3 Out of 413 applicants for a job, 127 have over 10 years of experience and 51 have over 10 years of experience and have a graduate degree. Step 1 of 2 : What is the probability that a randomly chosen applicant has a graduate degree, given that they have over 10 years of experience? Enter a fraction or round your answer to 4 decimal places, if necessary. Step 2 of 2: Consider that 83 of the applicants have graduate degrees. What is the probability that a randomly chosen applicant has over 10 yrs of experience, given that the applicant has a graduate degree? round to 4 decimal placesarrow_forwardQuestion 33: Two events A and B are such that P(4)-0.1P(B)-0.4 and P(AUB)=0.3. Find the value of P(AuB) 02 0.5 0.3 0.5 b) c) Answer OD Shrit 0:0:0arrow_forwardQuestion # 9 (8:55-9:05) The probability is 0.6 that a calibration of a transducer in an electronic instrument conforms to specifications for the measurement system. Assume that the calibration attempts are independent. What is the probability that at most three calibration attempts are required to meet the specifications for the measurement system?arrow_forward
- EXPERIMENT 1 When a romantic relationship goes bad, both people experience emotional pain regardless of who was the initiator of the breakup. You believe that if you hypnotize people and tell them positive things about the future while under hypnosis, it will lessen the pain of a breakup. You put an advertisement in the newspaper looking for people who have recently broken up. From the people that answered your ad, a random sample of 20 individuals was taken and they were put into two groups of n=10. Members in each group were newly broken up less than 10 days. One group is hypnotized each day for seven days and told positive things about the future. The other group watched YouTube videos each day on how to deal with a breakup. After seven days, you give the participants a post breakup satisfaction questionnaire. Higher scores mean more satisfaction with their current situation of being broken up. The descriptive statistics are shown below. Use those descriptive statistics to answer…arrow_forwardquestion 8 a recent survey releved that 54% of 18 to 34 year old , 33% of 35 to 54 year old and 15% those ages 55+ use youtube to listen to music . if 10 people ages 55+ are randomly selected find the probablitity that at most 1 use youtube to listen to music?arrow_forward
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