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Mathematics, 21.06.2019 20:00
Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189
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Mathematics, 22.06.2019 09:00
Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar(s). a special 8-sided die is marked with the numbers 1 to 8. it is rolled 20 times with thsee outcomes: 3 4 5 2 7 1 3 7 2 6 2 1 7 3 6 1 8 3 5 6
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Mathematics, 22.06.2019 11:10
In proof testing of circuit boards, the probability that any particular diode will fail is 0.01. suppose a circuit board contains 200 diodes. (a) how many diodes would you expect to fail? what is the standard deviation of the number that are expected to fail? (round your answer to three decimal places.) (b) what is the (approximate) probability that at least six diodes will fail on a randomly selected board? (round your answer to three decimal places.) (c) if five boards are shipped to a particular customer, how likely is it that at least four of them will work properly? (a board works properly only if all its diodes work. round your answer to four decimal places.)
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