A student studying for a vocabulary test knows the meanings of 14 words from a list of 22 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.)
A student studying for a vocabulary test knows the meanings of 14 words from a list...
A student studying for a vocabulary test knows the meanings of 14 words from a list of 26 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.) 958
A student studying for a vocabulary test knows the meanings of 10 words from a list of 24 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.)
A student studying for a vocabulary test knows the meanings of 16 words from a list of 20 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places.)
How do I do this problem? 0/1.25 points | Previous Answers TanFin10 7.4.025. 2/6 Submissions Used My Notese b A student studying for a vocabulary test knows the meanings of 10 words from a list of 24 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round your answer to three decimal places) Submit Answer
A producer of educational videos for toddlers is conducting a test to see if watching his videos increases a toddler's vocabulary. The test consisted of 100 toddlers watching the videos 5 hours a week for 6 weeks. At the end of the test, the mean number of vocabulary words among the 100 toddlers was 258. From prior measurements the producer knows the vocabulary for the corresponding general population of toddlers is normally distributed with a mean of 250 words with...
The probability that a student passes the first Biostats test without studying is 0.25. If 10 students didn't study for the test, what is the probability that 4 of them pass the test?
A test consists of 10 true/false questions. To pass the test a student must answer at least 6 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test? Round to three decimal places. A. 0.377 B. 0.828 C. 0.205 D. 0.172
A test consists of 10 true/false questions. To pass the test a student must answer at least 7 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test? Round to three decimal places. O A. 0.172 OB. 0.055 OC. 0.945 OD. 0.117
From past experience, a professor knows that the test score of a student taking his final examination is a random variable with mean 67.8 and standard deviation of 6.5. (a.) How many students would have to take the examination to ensure, with probability at least 0.94, that the class average would be within 2.5 of 67.8?
A manufacturer of window frames knows from long experience that 10% of the production will have some type of minor defect that will require an adjustment. What is the probability that in a sample of 16 window frames: a. None will need adjustment? (Round the final answer to 3 decimal places.) Probability b. At least one will need adjustment? (Round the final answer to 3 decimal places.) Probability O c. More than two will need adjustment? (Round the final answer...