Mathematics, 03.03.2020 01:33 hansen8031
Suppose we want to choose 3 colors, without replacement, from the 4 colors red, blue, green, and purple.
(a) How many ways can this be done, if the order of the choices matters?
(b) How many ways can this be done, if the order of the choices does not matter?
Answers: 2
Mathematics, 21.06.2019 12:30
And explain how you got it so i can understand future problems : 3
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Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100
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The radius of a sphere is 3 inches. which represents the volume of the sphere?
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Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)
Answers: 2
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