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shtirl [24]
3 years ago
5

Can someone help please??????

Mathematics
1 answer:
denis23 [38]3 years ago
8 0

Answer:

Please refer to the attachment

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On average, there are 10 customers arrives a local bank per hour. Bob is the only bank teller on duty at the bank currently and
I am Lyosha [343]

Answer:

the probability that no customer will arrive in the next 6 minutes = 0.36788 = 0.368

Step-by-step explanation:

If there are 10 customers per hour, this translates to 1 customer per 6 minutes

So, if there's a mean of 1 customer per 6 minutes, to obtain the probability that no customer will come in a 6 minute interval, this becomes a Poisson distribution problem.

The Poisson distribution formula is given by

P(X = x) = (e^-λ)(λˣ)/x!

where λ = mean = 1 customer per 6 minutes

x = 0 customer per 6 minutes

P(X=0) = (e⁻¹)(1⁰)/0! = 0.36788 = 0.368

7 0
3 years ago
-7q + 12r = 3q - 4r what dose r equal
Elanso [62]

Answer:

r = 5y/8

Step-by-step explanation:

isolate the variable by dividing each side by factors that contain the variable.

6 0
3 years ago
Carol used 114 cups of flour in 2 muffins. How many cups of flour are needed to make 12 similar muffins?
son4ous [18]

Answer:

7 1/2 cups

Step-by-step explanation:

If Carol uses 1 1/4 cups of flour for 2 muffins, then she will need to repeat this conversion 6 times since she wants to make identical 12 muffins in all.

So, 1 1/4 * 6 = 7 1/2

Therefore, she needs 7 1/2 cups of flour

Hope that helps! :)

7 0
3 years ago
There where four times as many trucks as vans. What is the ratio of the statements could compare the number of trucks to vans .
Westkost [7]

Answer:

4:1

Step-by-step explanation:

4 trucks for 1 van

3 0
3 years ago
Select all the statements that are true about standard deviation.
frozen [14]

Answer:

A,B, C

Step-by-step explanation:

hope it helps

7 0
3 years ago
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