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Karo-lina-s [1.5K]
3 years ago
11

The number of earthquake tremors in a 12-month period appears to be distributed as a Poisson random variable with a mean of 6. A

ssume the number of tremors from one 12-month period is independent of the number in the next 12-month period.(a) What is the probability that there are 10 tremors in 1 year? (b) What is the probability that there are 18 tremors in 2 years? (c) What is the probability that there are no tremors in a 1-month period? (d) What is the probability that there are more than 5 tremors in a 6-month period?
Mathematics
1 answer:
vova2212 [387]3 years ago
3 0

Answer:

note:

solution is attached in word form due to error in mathematical equation. furthermore i also attach Screenshot of solution in word due to different version of MS Office please find the attachment

Download docx
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Help!! whats the answer? and how do I solve!! :(
Sever21 [200]
I think the answer is 20.25 because when solving for the area of a triangle you do 1/2 base times height and so the equation would be
1/2(9)(4.5)
you would start by doing 9(4.5) which equals 40.5
then you would divide by 1/2 which equals 20.25
hope this helps:)
5 0
3 years ago
How many gallons of paint will you need in order to paint a wall that is 42 feet wide and 27 feet high if one gallon will cover
GREYUIT [131]

Answer:

42 x27  //// 1134 is the area

Step-by-step explanation:

1134/ 200= 5.67

You have to round up because you can’t get .67 of a paint bucket So you would have to round it out. <em>About 6 buckets.</em>

6 0
2 years ago
Louise cleaned for 4 and one-half hours and charged ​$27. At the same hourly​ rate, what would she charge for 6 and one-half hou
grin007 [14]

Answer: 39$

Step-by-step explanation: 4 hrs and 30 mins and you make 27$

You gotta make the hrs into minutes. So you can find the rate. 4 hrs is 240 minutes. With the 30 minutes its a total of 270 minutes. You're earning 1 dollar every 10 minutes. So i think if i did the math right 390 minutes is 6 hrs and 30 mins. And so she has earned 39$.

8 0
3 years ago
Need help with 2-5 plsssss
artcher [175]

Answer:

5) m∠DEF = 18

Step-by-step explanation:

I cant answer the rest because they require a protractor

7 0
3 years ago
Sal’s pizza shop can make 7 pizzas in 15 minutes. At this rate, how many pizzas can they make in 4 hours?
Crazy boy [7]

Answer:

112 pizzas

Step-by-step explanation:

There are 60 minutes in an hour, means that Sal's pizza shop can make 28 pizzas an hour. Multiply this by 4 to get 112

3 0
2 years ago
Read 2 more answers
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