Mathematics, 30.07.2019 18:30, shadestephen25
Mia bought 10 1/9 lb of flour. she used 2 3/4 lb of flour to bake a banana cake and some to bake a chocolate cake. after baking two cakes, she had 3 5/6 lb of flour left. how much flour did she use to bake the chocolate cake?
Answers: 1
Mathematics, 21.06.2019 15:30, destinysmithds7790
Which of the following expressions are equivalent ?
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Mathematics, 21.06.2019 19:00, 592400014353
The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99
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Mathematics, 21.06.2019 23:30, bbby2
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
Mia bought 10 1/9 lb of flour. she used 2 3/4 lb of flour to bake a banana cake and some to bake a c...
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