Mathematics, 18.11.2020 16:50 fireman59937
Adam has two brothers, Ben and Chris, and one sister, Daisy. On any given day, Ben calls Adam with Probability 0.3, Chris calls Adam with Probability 0.4, and Daisy calls Adam with probability 0.7. let X be the number of siblings that call Adam tomorrow. Find the expectation of X. Hint: Express X as the sum of suitable indicator random variables.
Answers: 2
Mathematics, 21.06.2019 15:00
Select the correct answer from the drop-down menu. this graph represents the inequality x+2< 4,2x> 3,x+6< 12,2x> 12
Answers: 2
Mathematics, 21.06.2019 16:00
An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.
Answers: 2
Mathematics, 21.06.2019 19:30
Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.
Answers: 1
Mathematics, 21.06.2019 21:30
Having a hard time understanding this question (see attachment).
Answers: 2
Adam has two brothers, Ben and Chris, and one sister, Daisy. On any given day, Ben calls Adam with P...
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