anonymous
  • anonymous
PLEASE HELP!!!!!! I can't quite understand how to do this.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
The probability distribution of the number of accidents in a week at an intersection, based on past data, is given below. Find the expected number of accidents in one week. Round your answer to the nearest hundredth.
anonymous
  • anonymous
number of accidents (n)| 0 | 1| 2| 3 Probability of n accidents| 0.75| 0.15| 0.08| 0.02
anonymous
  • anonymous
what kinda distribution do ya use?

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anonymous
  • anonymous
That's where I am at a loss. I'm not quite sure. I'm getting confused because of the past problems I have been doing
freckles
  • freckles
since it is discrete \[E(\text{ accidents in one week })=\sum_{n=0}^{3} n \cdot p(n)\]
anonymous
  • anonymous
probability mass function?
freckles
  • freckles
aka also known as mean value
anonymous
  • anonymous
Oh! That makes sense! I was over complicating it again...
freckles
  • freckles
have you found the sum of the products that I mentioned?
freckles
  • freckles
that is have you computed: 0*.75+1*.15+2*.08+3*.02
anonymous
  • anonymous
Yes, indeed I was working on that. cx
anonymous
  • anonymous
dayum probability magics
anonymous
  • anonymous
for my final answer I got 0.37
freckles
  • freckles
ok sounds awesome
freckles
  • freckles
that is what I have gotten too

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