When making random guesses on an 6 question quiz the probability of guessing correctly on any one question is 0.25. What is the probability of guessing correctly on at least one question? O 0.857 O None of these O 0.178 O 0.874 O 0.822
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A: Given: n = 13 x = 6 p = 0.80
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A: The sample size n is 13.
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A: p=40%, n=15, X=6
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- What is the probability of getting the same score in three consecutive throws of a single fair die? Select the correct response.: O 0.005 O 0.028 O 0.211 none of these O 0.1075359 pregnant women were tested to see if their babies had Down Syndrome (D). The results of the test are given in the table. Use the values in the table to answer parts a-c. a. Given that a test result is negative (NEG), what is the probability that the fetus actually has Down syndrome? P(D|NEG)= b. Given that the fetus has Down syndrome, what is the probability that the test result is negative? P(NEG|D)= c. Is P(D|NEG) equalt to P(NEG|D)? A. Yes, because P(NEG|D) deals with a much larger pool of fetuses than P(D|NEG). B. No, because P(NEG|D) deals with a much smaller pool of fetuses than P(D|NEG). C. No, because P(NEG|D) deals with a much larger pool of fetuses than P(D|NEG). D. Yes, because P(NEG|D) deals with a much smaller pool of fetuses than P(D|NEG)Which of the following values could be a probability?
- Final answers should be either in lowest-term Fraction or up to 4 decimal places only. For even smaller numbers, round off to the nearest non-zero digit.A teacher asks her 20 students to each write a book report, but 6 students do not complete the assignment. The teacher randomly chooses 5 students to present their reports. What is the approximate probability the teacher has selected only students who completed the assignment? O 8% O 13% O 17% O 19%College students were given three choices of pizza toppings and asked to choose one favorite. Results are shown in the table. toppings freshman sophomore junior senior cheese 23 18 10 18 meat veggie 10 24 10 OA. 227 B. 408 O C. 677 OD. 421 10 18 10 10 24 Estimate the probability that a randomly selected student who is a junior or senior prefers veggie. Round the answer to the nearest thousandth. ***
- The probability of a student succeeding in statistics is 0.6, the probability of him succeeding in anatomy is 0.2, and the probability of him succeeding in statistics when he has succeeded in anatomy is 0.7, so the probability of him succeeding in anatomy if he succeeds in statistics is: * O 0.24 O 0.23 O 0.26In an experiment, college students were given either 4 quarters or a one dollar bill and they could either keep some money or spend it on gum. find the probability of randomly selecting a student who spent the money, given that the student was given for quarters. What do the preceding results suggest?a quiz for a psychology class consists of ten questions, the questions are multiple choices with five possible answers each with only one correcct answer. if the student did not study and is guessing for all ten questions (x is the number of correct answers a students get correct) A- what is the probability of that student gettting one correct answer? B- what is the probability of that student getting a passing grade (70% or more correct is passing)