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inna [77]
3 years ago
12

Someone help me pleaseee

Mathematics
1 answer:
krok68 [10]3 years ago
5 0

Answer:

  522

Step-by-step explanation:

The assumption is that the proportion of tagged fish caught is the same as the proportion of all fish that were caught and tagged:

  (all fish)/(number tagged) = (sample size)/(number in sample tagged)

  all fish = (number tagged) · (sample size)/(number in sample tagged)

  all fish = 174 · 39/13

  all fish = 522

If all the assumptions are reasonable, the number of fish in the lake is estimated at 522.

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Suppose customer arrivals at a post office are modeled by a Poisson process N with intensity λ > 0. Let T1 be the time of the
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Answer:

Step-by-step explanation:

We need to find the conditional probability P( T1 < s|N(t)=1 )  for all s ≥ 0

P( time of the first person's arrival < s till time t exactly 1 person has arrived )

= P( time of the first person's arrival < s, till time t exactly 1 person has arrived ) / P(exactly 1 person has arrived till time t )

{ As till time t, we know that exactly 1 person has arrived, thus relevant values of s : 0 < s < t }

P( time of the first person arrival < s, till time t exactly 1 person has arrived ) / P(exactly 1 person has arrived till time t )

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Therefore,

P(exactly 1 person has arrived till time s )/ P(exactly 1 person has arrived till time t )

= [ kse-ks/1! ] / [ kte-kt/1! ]

= (s/t)e-k(s-t)

4 0
3 years ago
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Bad White [126]

Answer:

a = 4

Step-by-step explanation:

3 0
2 years ago
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ABC and DEF are similar. Find the missing side length.
mrs_skeptik [129]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
3(1-3x)=2(-4x+7) solve
Rudiy27

Simplify the left side.

Tap for more steps...

3−9x=2(−4x+7)

Simplify the right side.

Tap for more steps...

3−9x=−8x+14

Move all terms containing x

to the left side of the equation.

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3−x=14

Move all terms not containing x

to the right side of the equation.

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−x=11

Multiply each term in x=−11

by −1

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x=−11

Hope this helps!

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How do I solve x/2 plus x/5 equals 1
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Answer:yeeyyh

Step-by-step explanation:

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3 years ago
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