Both 50% marksmen, Cj and Jc agree to a firefight in which they alternate shots until one of them is hit. How likely is it that the first shot will win?
Q: A- Explain the following • Random Experiments. • The Variance of data. Bayes' Theorem.
A: 1. Random Experiments: A Random Experiment is an experiment, trial, or observation that can be…
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A: Given that, The sample proportion of 1 and 2 are,
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Q: Assuming the requirements are met for the penny study, what is the margin of error for a 95%…
A: given data n1 = 116 x1 = 80p^1 = x1n1 = 80116 = 0.6897 n2 = 137 x2 = 91 p^2 = x2n2 = 91137 =…
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A:
Q: The percentage of hands that are winning blackjack hands is enter your response here%
A: Since we have calculated probability of selecting a black jack hand is P(Black Jack hand) = 64/1326…
Q: Jac tosses an unbiased coin. If the coin lands with head up on each toss, he wins Php50. However, if…
A: Jac wins 50 hence The event of wining is +50 Jac loses 60 hence The event of losing is -60
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A: Solution is given:
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A: here given , S = success F = Failure
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A: Given that µ = 43 and s = 8 Formula for Z-score Z=(X-µ)/s
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Q: If a toss a coin twice are you certain to get one head and one tail? If you toss a coin 100 time…
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Q: Part B. The absolute risk of getting diabetes in the UK if you are an obese adult is 63.4%. The…
A: Absolute risk of getting diabetes if you are an obese = 63.4% Absolute risk of getting diabetes if…
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Q: identify the claim. Vitamin E pills, according to the claim. st's claim. P=39%P=39%, to be precise.…
A: d)
Q: 55% of high
A: Probability of participating = 0.55 Probability of playing in NCAA given participating = 0.05
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Q: How do I solve c, d, and e with the given data?
A: From the given box plot we find the solution for C,d,e.
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A: Null Hypothesis: H0: The mean number of hours is greater than or equal to 11 hours. Alternative…
Q: In a sample of 47 men, 36 said that they had less leisure time today than they had 10 years ago. In…
A: We have to perform test for difference in two proportion.
Q: Answer all and explain how it is solved. Show hand written solutions.
A:
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- An article in the Archives of Internal Medicine reported that in a sample of 224 men, 73 had elevated total cholesterol levels (more than 200 milligrams per deciliter). In a sample of 232 women, 44 had elevated cholesterol levels. Can you conclude that the proportion of people with elevated cholesterol levels differs betwen men and women? Use the a= 0.05 level.Students answers choosing randomly YES or NO. To pass the exam he must answer correctly for at least 2/3 of all questions. What is his chance if there are 6 questions in the test?At a class, 40% are sophomores, and 50% of the students like fencing. Of the students that like fencing, 60% are sophomores. What proportion of sophomores like fencing?
- In a recent survey of 180 people who drink coffee or tea, it was found that 137 drink coffee and 74 drink tea. How many people drink both?Brandon's score in the high jump at a track and field event showed that he was only able to jump higher than 27% of his competitors. Find the z score for Brandon's high jump score.In a statistics activity, students are asked to spin a penny and a dime and determine the proportion of times that each lands with tails up. The students believe that since a dime is lighter, it will have a lower proportion of times landing tails up compared to the penny. The students are instructed to spin the penny and the dime 30 times and record the number of times each lands tails up. For one student, the penny lands tails side up 18 times, and the dime lands tails side up 20 times. Let PD = the true proportion of times a dime will land tails up and pp = the true proportion of times a penny will land tails up. Which of the following is the correct standardized test statistic and P-value for the hypotheses, Ho: Po-Pp= 0 and H₂: Po-Pp<0?
- At a class, 80% are female and 40% of the students like swim. Of the students that likeswim, 60% are females. What proportion of female like swim?A group of cars were built such that µ = 46 mpg and o = 12 mpg. 95% of the cars will be less than what mpg? 95% of the cars will be greater than what mpg? 99% of the cars will be greater than what mpg? Interpolate to get third digit.Complete the State, Plan, Do, Conclude for this problem. A popular blog reports that 66% of college students log in to Instagram on a daily basis. The Dean of Students at a certain university thinks that the proportion may be different at her university. She polls a simple random sample of 152 students, and 57 of them report that they log in to Instagram daily. Using α= 0.05, can you conclude that the proportion of students who log in to Instagram daily is more than 0.66?
- An epidemiologists is studying two populations that have recently had an outbreak of a disease with similar symptoms. In one population of 600 people, 450 of them became infected and 3 of them died. In the other population of 200 people, 20 were infected and 10 died. Did the two towns have an outbreak of the same disease? Defend your answer. Use prevalence and mortality rates to help you.Elizabeth has taken 3 exams so far for her sociology class. The first test is worth 35% of her grade, and she scored a 95. Her second and third tests are each worth 20% of her grade. She scored an 80 on test 2 and a 74 on test 3. What is her weighted average score in class so far?6. 4p² + 7q³ if p = -3 and q = -2 %3D %3D 54
