Mathematics, 19.10.2019 11:30 deadpoolcorvettehats
The probability of choosing a number less than 7 and then a multiple of 4 is?
Answers: 3
Mathematics, 21.06.2019 14:00
Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)
Answers: 3
Mathematics, 21.06.2019 18:30
This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)รท(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! โค
Answers: 2
Mathematics, 21.06.2019 22:20
(b) suppose that consolidated power decides to use a level of significance of ฮฑ = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is xโฏโฏ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume ฯ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)
Answers: 2
Mathematics, 21.06.2019 23:30
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
The probability of choosing a number less than 7 and then a multiple of 4 is?...
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