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2 years ago

Somebody solve this please.

Mathematics

2 answers:

Yuri [45]2 years ago

5 0

The shortest collection times are indicated by the leftmost vertical line on each graph:

45-25=20

The difference in minutes is 20.

Hope this helps!!

ElenaW [278]2 years ago

3 0

The best answer would be 20! (45-25=20)

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If two events are independent, then

$Pr(A\cap B)=Pr(A)\cdot Pr(B)$ .

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$Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)},\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}$ .

For independent events these formulas will be:

$Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(B)}=Pr(A),\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(A)}=Pr(B)$ .

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We know that customers arrive at a grocery store at an average of 2.1 per minute. We use the Poisson distribution:

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