Mathematics, 19.03.2020 22:50 jakalenn2018
Red snapper is a rare and expensive reef fish served at upscale restaurants. A certain law prohibits restaurants from serving aâ cheaper, look-alike variety of fishâ (vermilion snapper or laneâ snapper) to customers who order red snapper. Researchers at a university used DNA analysis to examine fish specimens labeledâ "red snapper" that were purchased form vendors across the country. The DNA tests revealed that 78â% of the specimens were not redâ snapper, but theâ cheaper, look-alike variety of fish.
a. Assuming that the results of the DNA analysis are valid, what is the probability that you are actually served red snapper the next time you order it ata restaurant?
b. If there are five customers at a restaurant, all who have ordered red snapper, what is the probability that at least one customer is actually served red snapper?
Answers: 3
Mathematics, 21.06.2019 17:20, ryleepretty
Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?
Answers: 2
Mathematics, 21.06.2019 19:30, cody6187
Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172
Answers: 1
Mathematics, 21.06.2019 21:00, vliu470
Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step
Answers: 3
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