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Hi, i'm david and i'm h.
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Have you answered your question? let me take up your question here.
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Let me make it quicker.
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In the question here, we're given a table of the probability for the random probable act.
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And in the question a, we need to verify this is the discrete probability distribution function.
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So this is a discrete probability distribution function because there's a sum in the probability.
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So we need to add up on the probability here.
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0 .395 plus 0 .075.
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075 plus 0199 plus 0195 plus 7136 then get exactly equal to 1 so therefore here the total the sum probability equal to 1 and each probability is between the 0 and 1 and inclusive and that will be the answer for the a in the b graph the discrete probability decimal function so if you'll scan the graph now you can be the probability and this will be the x so we'll take the value 0 1 2 3 and the 4 so the first one will be 0 .395 so let's say this value will be the 0 .3 95 and the value will be here and the next one will have 0 .075 will be very tiny one here and we have this will be this point then we have zero one 99 so it will be around here zero point one 99 and it would be this one and then we have zero point 195 and very close to this one this one will be the zero point one ninety five and then we have this one will be very close to that the next one will be 136.
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So 136 it will be somewhere here.
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0 .136 and then we will have it will be here.
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And we need to draw the line now to indicate that.
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And that will be the answer for the question b.
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And for the c, we need to compute and interpret the mean unvaryngombrable...