1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mamaluj [8]
3 years ago
10

According to insurance records, a car with a certain protection system will be recovered 95% of the time. If 800 stolen cars are

randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen?
Mathematics
1 answer:
Lapatulllka [165]3 years ago
7 0

Answer: Mean = 760

Standard deviation = 6.16

Step-by-step explanation:

Given : The number of trials: n=800

The probability that  a certain protection system will be recovered :p=0.95

We know that the mean and standard deviation of binomial distribution is given by :_

\text{Mean}=np

\text{Standard deviation}=\sqrt{np(1-p)}, where n is the number of trials and p is the probability of success.

Now, the mean and standard deviation of the number of cars recovered after being stolen is given by :-

\text{Mean}=800\times0.95=760

\text{Standard deviation}=\sqrt{800\times0.95(1-0.95)}\\\\=6.164414002\approx6.16

Hence, the mean is 760 and standard deviation is 6.16 .

You might be interested in
Plz help me with my homework!!!!
Kaylis [27]
28. Each person will get 2 pieces. 1/6=2/12
29. Each teacher will get 9 cookies. 1/4=(sorry, I'm not sure)
30. Each student will get 4 slices.1/16=4/64
31. She has made five.
Hope this helped :)
3 0
3 years ago
Ava graphs the function h(x) = x2 + 4. Victor graphs the function g(x) = (x + 4)2. Which statements are true regarding the two g
Firlakuza [10]

Answers:

Ava’s graph is a vertical translation of f(x) = x^2.

Ava’s graph moved 4 units from f(x) = x^2 in a positive direction.

Ava’s graph has a y-intercept of 4.

Given:

Ava graphs the function h(x) = x^2 + 4.

Victor graphs the function g(x) = (x + 4)^2

To find y intercept we plug in 0 for x

h(x) = x^2 + 4

h(x) = 0 + 4= 4

So ,Ava’s graph has a y-intercept of 4.

Ava graphs the function h(x) = x^2 + 4

If any number is added at the end then the graph will be shifted up. 4 is added at the end so there will be vertical translation.

Hence , Ava’s graph is a vertical translation of f(x) = x^2. Also Ava moved 4 units up from f(x) = x^2 in a positive y- direction.

Victor graphs the function g(x) = (x + 4)^2

If any number added with x then the graph will be shifted left. the graph will be shifted in negative x direction.


7 0
3 years ago
Read 2 more answers
The point G(-5, -4) is translated 1 unit left. What are the coordinates of the resulting point, G′?
Lady bird [3.3K]
Worksheet? I need more information on this topic
7 0
3 years ago
Read 2 more answers
TRUE or FALSE
kupik [55]

Answer:

True

Step-by-step explanation:

~Is SAA side-angle-angle

8 0
3 years ago
Janice is making a soup recipe that normally yields 8 servings. The recipe calls for 3 pounds of chicken and a certain number of
kondaur [170]

Answer:Janice needs 5 pounds of vegetables.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • 9. Barbara invests £14,000. In the first year, she earns 5.9% interest. In the second year, she earns 3.2% interest, a. What was
    13·1 answer
  • Ahmed is taking orders for lunch. A slice
    8·1 answer
  • PLEASE HELP FINDING y IN TRIANGLE AND ROUND TO NEAREST TENTH TRIG!! HELP ASAP APLEASE
    13·1 answer
  • Pls answer asap i need this answer quick plus the full explanation #8
    6·1 answer
  • Find f(-2) when f(t) = -2t + 3
    7·1 answer
  • .....pleazeeeeeeee helpppppppppp
    7·2 answers
  • Bella went to Yard Depot multiple times. Each time she was there, Bella bought a gardening hat and y pairs of gardening gloves.
    6·1 answer
  • (s-4)8=8(s-4) does this demonstrate Distributive property?
    15·1 answer
  • Hi can anybody answer this please !
    5·1 answer
  • Can someone do this for me please?! Just the answer pls
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!