What is the probability that the first person selected is a supervisor and in management? A. 0 B. 0.0600 C. 0.150 D. 0.211 E. None of the choices are correct
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What is the
A. 0
B. 0.0600
C. 0.150
D. 0.211
E. None of the choices are correct
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- Which one of the following is not a valid number for a probability? a. 0.32 Ob. 17% О с. 0 Od 1.5T1.5 A 7-card hand is dealt from a standard 52-card deck. What is the probability of dealing, 4 spades ♠, one diamond ♦, and two hearts ♥?In a certain town, 10% of the population is left handed. If 85 residents of the town are selected at random, what is the probability that 3 or fewer will be left handed? Use a TI-83, TI-83 plus, or TI-84 calculator to find the probability.
- . Determine whether the following is a probability model.Tyee recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students Instrument # of Students Guitar 3 Bass 8 Drums 9 Keyboard 8 Eighth Grade Students Instrument # of Students Guitar 3 Bass 14 Drums 5 Keyboard 4 Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than guitar as a decimal to the nearest hundredth.A certain affects virus 0.2% of the population. A test used to detect the virus in a person is positive 90% of the time if the person has the virus (true positive) and 15% of the time if the person does not have the virus (false postive). Fill out the remainder of the following table and use it to answer the two questions below. Infected Not Infected Total Positive Test Negative Test Total 200 99,800 100,000 a) Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest tenth of a percent and do not include a percent sign.P(Infected | Positive Test)= %b) Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest tenth of a percent and do not include a percent sign.P(Not Infected | Negative Test) = %
- A certain virus affects 0.7% of the population. A test used to detect the virus in a person is positive 89% of the time if the person has the virus (true positive) and 10% of the time if the person does not have the virus (false positive). Fill out the remainder of the following table and use it to answer the two questions below. Infected Not Infected Total Positive Test Negative Test Total 700 99,300 100,000 a) Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest tenth of a percent and do not include a percent sign.P(Infected | Positive Test)= %b) Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest tenth of a percent and do not include a percent sign.P(Not Infected | Negative Test) = %According to Trains, Trains Trains, trains in Jacksonville had an on-time percentage of 79.0% in 2019. Suppose that 4 trains are randomly selected from 2019 and the number of on-time trains X is recorded. What is the probability that 3 trains are on time? Write it as 0.5^2 (even if the exponent is 1 or 0 to show the pattern 0.79^30.21^14What is the probability the other 1 trains are NOT on time? Write it as 0.5^2 (even if the exponent is 1 or 0 to show the pattern 0.21^140.79^3How many possible options are there that 3 trains are on time? i.e. think about 1st flight on time, or the second, or the third, etc. Use picture above! 40.79^30.21^1You would then multiply all answers together to find the probability.Suppose that at UCLA, 35% of students are international students. What is the probability that 40 students out of a randomly sampled group of 100 are international students? a. 0.8528 b. 0.1041 c. 0.2234 d. None of these e. 0.1473
- Suppose you like to keep a jar of change on your desk. Currently, the jar contains the following: 18 Pennies 13 Dimes 18 Nickels 13 Quarters Copy Data What is the probability that you reach into the jar and randomly grab a nickel and then, without replacement, another nickel? Express your answer as a fraction or a decimal number rounded to four decimal places.Which of the following numbers could be the probability of an event? 0.24, 0.46, 1, 1.56, 0, 0.07This question