Standardized Test: You are trying to answer a multiple choice question on a standardized test. There are three choices. If you get the question right, you gain 1 one point, and if you get it wrong, you lose point. Assume you have no idea what the right answer is, so you pick one of the choices at random. What is the expected value of the number of points you get? What is the expected value of the number of points you get? Round the answer to two decimal places. The expected value of the number of points you get is 5

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A: We have given  the following statement about the software store.  121 people who walked by his store…

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A: Given, A organization sells 10,000 lottery tickets for $1 each. First price earn $300, Second win…

Q: Becky has 30 T-shirts in a drawer: 12 concert shirts, 8 team shirts, and 10 plain shirts. Of the 10…

A: We have to compare frequency

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A:

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A:

Q: Consider a computer test to indicate if you like Math 123 or dislike Math 123. If positive, you like…

A: Given information: P(Like) = 0.80 P(Dislike) = 0.20 PPositiveLike=0.855 PNegativeDislike=0.855…

Q: A student is taking a standardized test consisting of several multiple-choice questions. One point…

A: Given that each question has 7 options.So the probability of getting right answer=17The probability…

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A: It is needed to give $10 to buy a ticket and once can win $500 as a jackpot.

Q: You are taking a 10 question multiple-choice test. If each question has four choices and you guess…

A: Given Data Probability of success,p =1/4 =  0.25 Probability of failure,q=(1- 0.25 )=…

Q: Becky has 30 T-shirts in a drawer: 12 concert shirts, 8 team shirts, and 10 plain shirts. Of the…

A: We have to answer question based on frequency.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given,sample size(n)=470no.of who support the candidate(x)=370sample proportion(p^)=xn=370470

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A:

Q: Jack wrote a 10-question multiple choice quiz. Each question has five possible choices. What is the…

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Q: A final exam has 40 multiple choice questions. Each question has 5 possible answers, one of which is…

A: N = 40.Probability of correct answer: Probability of incorrect answer: A correct answer is worth 4…

Q: Write both the null and alternative hypothesis. Using the correct notation The proportion of…

A: Null Hypothesis (H0):It's an assertion regarding the population which is assumed to be true or is…

Q: Justify an answer

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A: Solution:- probability = number of outcomes/ total outcome

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A: Let X represent the number of free throw shooter hits   X~ Binomial (5, 0.64)

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Q: O Impossible O Likely O Unlikely O Certain

A: The sample space for two standard dice is given as:…

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A: P (  person who walks into the store will buy something ) is = ?

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A: Given:250 women diagnosed with osteoporosis.An equal number of women without osteoporosis ( 250…