Mathematics, 03.12.2019 01:31 Tanya120
99 points no fake answers
a standard six-sided dice is repeatedly rolled until it lands on a two. what is the probability that the first two is rolled after the first six rolls?
a) 33%
b) 41%
c) 53%
d) 67%
suppose you buy one ticket for $1 out of a lottery of 1,000 tickets where the for the one winning ticket is to be $500. what is your expected value?
a) $0.00
b) $-1.00
c) $-0.40
d) $-0.50
Answers: 2
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In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=4 and bc=3, find ah, ch and bh.
Answers: 1
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Which of the following is the best first step in solving the equation below? 4+2㏒³x=17
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Mathematics, 22.06.2019 00:30
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
99 points no fake answers
a standard six-sided dice is repeatedly rolled until it lands on a...
a standard six-sided dice is repeatedly rolled until it lands on a...
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