Probability tests with answers
[DOC File]Probability
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Write a short method and give all your answers in fractions. 1. Two balls are drawn from a bag containing 3 red, 3 green and 4 black balls. Find the probability that : (a) both are red, (b) one is green and one is black, (c) both are of the same colour. (a) P(both are red ) = (b) P (one is green and one is black) = (c)
[DOC File]Answer ALL questions
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Practice Tests: Set 1A. Paper 2F (Calculator) Time: 45 minutes. ... Write your answers in the spaces provided. ... Probability 0.2 0.1 The probability that the spinner will land on 2 is the same as the probability that the spinner will land on 4 (a) Work out the probability that the spinner will land on 4 ...
[DOC File]Chapter 11- Testing A Claim
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Power: the probability that a fixed level, α, significance test will reject Ho , when a particular alternative value of the parameter is true, is called power. The power of a test against any alternative is 1 minus the probability of a Type 2 error, β.
[DOC File]Exam 3 Practice Questions
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What is the probability that the average weight of our 143 subjects is bigger than 193 lbs? 0.4404 0.0367 0.5596 Cannot say from the information provided. 39. Refer to question 38, but this time suppose we take a random sample of 16 males from Alachua County. What is the probability that the average weight of our 16 subjects is bigger than 193 lbs?
[DOC File]Probability Unit Quiz (Form A)
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15. Find the probability of getting a king and then an eight. Assume the cards are not replaced. 16. Find the probability of getting a queen and a red card. 17. In how many ways can a president and vice president be selected from a club of 20 students? Show all …
[DOC File]TWELVE PRACTICE PROBLEMS--PROBABILITY
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Conditional Probability Problem--Football. ... Developers of medical tests can manipulate the sensitivity and specificity--when one is increased, the other decreases. Create a probability table with columns D (disease) and W (well), and rows P (positive) and N (negative). ... Nearly everyone answers this question "50%," but they are wrong. Here ...
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