HELP PLS! Suppose the year of car accidents per day in Wilmington NC has been recorded for the past year. The table below is a probability distribution table representing the data collected.
1) what is the probability that on a randomly selected day there were no accidents?
2) find the probability there will be at least 2 accidents
3) on any given day how many accidents should the Wilmington police expect to have.
Answers
According to the discrete distribution given:
1) There is a 0.18 = 18% probability that on a randomly selected day there were no accidents.
2) There is a 0.7 = 70% probability that there will be at least 2 accidents.
3) On any given day, the Wilmington police should expect to have 2.03 accidents.
The distribution is:
[tex]P(X = 0) = x[/tex]
[tex]P(X = 1) = 0.12[/tex]
[tex]P(X = 2) = 0.32[/tex]
[tex]P(X = 3) = 0.25[/tex]
[tex]P(X = 4) = 0.13[/tex]
Item 1:
The sum of the probabilities has to be 100% = 1, hence:
[tex]x + 0.12 + 0.32 + 0.25 + 0.13 = 1[/tex]
[tex]x + 0.82 = 1[/tex]
[tex]x = 0.18[/tex]
0.18 = 18% probability that on a randomly selected day there were no accidents.
Item 2:
This probability is:
[tex]P(X \geq 2) = P(X = 2) + P(X = 3) + P(X = 4) = 0.32 + 0.25 + 0.13 = 0.7[/tex]
0.7 = 70% probability that there will be at least 2 accidents.
Item 3:
The expected value is the sum of each outcome multiplied by it's respective probability, hence:
[tex]E(X) = 0.18(0) + 0.12(1) + 0.32(2) + 0.25(3) + 0.13(4) = 2.03[/tex]
On any given day, the Wilmington police should expect to have 2.03 accidents.
A similar problem is given at https://brainly.com/question/25653146
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EASY
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Answer:
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Feel free to give Brainliest!
got the picture since copying wont work
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8x^6
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STEP1:
Equation at the end of step 1
(2²x³• 2) • x³
STEP2:
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[1] [tex]\frac{-1 - 1}{-3 - 2}[/tex] = [tex]\frac{-2}{-5}[/tex]=
() [tex]\frac{2}{5}[/tex]
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() [tex]\frac{9}{-2}[/tex]
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
HELP PLEASE
Acellus
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Answer:
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-3x + 4y = 2 +
10y = 20
y = 20/10 = 2[tex] \: [/tex]
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3x = 18 - 12
3x = 6
x = 6/3 = 2[tex] \: [/tex]
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Answer:
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Step-by-step explanation:
Answer:
21
Step-by-step explanation
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Answer: 3 cups of flour
Step-by-step explanation:
8) What are the measures of angles x, y, and z?
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Step-by-step explanation:
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300
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Step-by-step explanation:
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hope this helps you.
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Answer:
Step-by-step explanation:
Shift deciaml point on right side before a non zero number which is 4:
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Question 10(Multiple Choice Worth 1 points)
(01.05 MC)
Which number line best shows the position of 13?
J3
ht
-4
-3
- 2
-1
0
1
3
2
4
13
-4
-3
- 2
.
-1
0
1
2.
3
4
13
+
1
-3
-2
-4
-1
0
2.
3
4
13
+
3
-4
-3
-1
0
1
2
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Answers
Answer:
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Answer:
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Answers
Answer:
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Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
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Answer:
Hello, have a great day.
Answer:
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Answers
Answer:
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Step-by-step explanation:
Domain: 3, 6, 8, 9, 7
(Domain, Range)
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Hope this helps :)
Answer:
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Step-by-step explanation:
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SOMEONE PLEASE HELP I will give you brainliest it’s due in 11:59 pm TODAY!! Please
Answers
longer side: 260ft
greatest possible area: 33800ft^2
basically get the equations for area and perimeter which will be
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Answers
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4l + h = 108
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4(20) + 28 = 80 + 28
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Answers
Answer:
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Step-by-step explanation:
Use Pythagorean Theorem.
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Answer: c ic the answer
c is the answer
Step-by-step explanation:
c is the answer
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Answers
Answer:
1) 28.4 miles per gallon
2) 34 miles per gallon
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Step-by-step explanation:
Blue car:
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Red car:
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We want to know the unit rate for miles per hour, and to do it we have to divide the miles they travel by the gallons each car uses:
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(Show steps please)
Answers
Answer:
H=21ft
Step-by-step explanation:
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Answers
Answer:
Graph #2 for sure, both axis are linear and the curve is a parabola all right.
On graph #1: I can't for the life of me read the units on the Y axis, so you have to check: if they're going 2000 4000 6000, then that is a parabola as wel. If they're increasing esponentially, ie 2000 4000 8000, then one of the two axis is logarithmical and the curve is no longer quadratic.