#How do I answer this

21 messages · Page 1 of 1 (latest)

hollow osprey
potent ploverBOT
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lofty mica
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  1. verify that the sum of the probabilities is 1
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  1. apply definition
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$$F_X(k) = P{X \leq k}$$

empty anchorBOT
lofty mica
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for example F(3) = P{X <= 3} = P{X=1} + P{X=2} + P{X=3} = 6/15

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@hollow osprey

hollow osprey
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Let me try and work it out

lofty mica
keen bolt
lofty mica
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it's a discrete variable whose probability mass function is f

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discrete variables cannot have density

keen bolt
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Oh, no-no, I know. It's just that they denoted the PMF by f instead of p, which us what I'm used to, so I was quite confused at first.

lofty mica
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I'll enjoy confusing the living f out of you with notation then kekbusiness

keen bolt
lofty mica
crystal umbraBOT
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@hollow osprey

<:HelpIcon:1304095958283321385>| Help Reminder

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hollow osprey