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
Anestetic [448]
3 years ago
6

If 8% of all cell phones are defective, and you have a random sample group of 100 Samsung Galaxy Vills,

Mathematics
1 answer:
Sati [7]3 years ago
5 0

Answer:

Mean = 8

Variance = 7.36

Standard Deviation = 2.7129

Step-by-step explanation:

This is a binomial distribution with parameters, n and p.

Where

n is sample size (given as 100)

p is the probability of success, or probability of defective (given as 8% or 0.08)

The mean, variance, standard deviation formula for binomial distribution is shown below:

Mean = np

Variance = npq

Standard Deviation = \sqrt{npq}

Where q would be probability of failure, or "1 - p"

Thus,

n = 100

p = 0.08

q = 1 - 0.08 = 0.92

SO, we have:

Mean = np=100*0.08=8

Variance = npq=100*0.08*0.92 = 7.36

Standard Deviation = \sqrt{npq}=\sqrt{7.36}=2.7129

You might be interested in
Find all the real cube roots of 1000/27 <br><br><br> 10/3 <br> 10/9 <br> -10/9 <br> -10/3
gulaghasi [49]
Can you do prime factoriztion

1000
100 * 10
10 * 10 * 10

27
9 * 3
3 * 3 * 3

cube root (1000/27) = 10/3
7 0
3 years ago
Read 2 more answers
The function f(t) = 20 sin (pi over 5t) + 12 models the temperature of a periodic chemical reaction where t represents time in h
gregori [183]
The answer for the exercise shown above is the second option, which is: <span>Maximum: 32°; minimum: −8°; period: 10 hours.
 The explanation is shown below:
</span> You can make a graph of the function given in the problem above: f(t)=20Sin(π/5t)+12.
 As you can see in the graph, the maximum point is at 32 over the y-axis, and the minimum is at -8.
 The lenght of the repeating pattern of the function (Its period) is 10.

6 0
3 years ago
Help, I don’t know how to solve this.
NNADVOKAT [17]

Answer: Angles ABD and BAD (B)

Step-by-step explanation: Angles ABD BAD are not congruent angles, since they are the same angles.

Congruent angles are angles that both measure the same in degrees.

In this case, B is your correct answer since that answer has the same angle and not comparing any 2 angles, just the same one.

Hope This Helped, Have A Great Day!

3 0
2 years ago
Let
kow [346]

Answer:

can write it again soon as you can do it again

6 0
2 years ago
Help with problem 14?! 
marysya [2.9K]
All you need to know is that domain is x and range is y, like a graph.
6 0
2 years ago
Other questions:
  • PLEEEEEEEEEEEEEEEASE HELP ME WITH THIS. IT IS DUE TOMORROW!!
    11·1 answer
  • 2.
    8·1 answer
  • A box in a supply room contains 21 compact fluorescent lightbulbs, of which 7 are rated 13-watt, 8 are rated 18-watt, and 6 are
    5·1 answer
  • Marion wants to paint her rectangular bedroom walls of the rumor 8 feet in height the ceiling of the room is 12 feet in length a
    7·1 answer
  • What is the opposite of the opposite of the opposite of 29?​
    6·1 answer
  • Kimo’s car needed work. The mechanic charged him $140 for the parts and $48 per hour for labor. If the bill totaled $260,how man
    5·1 answer
  • Use this number sen<br> 85 + n = 115<br> PLS PLS HELP
    8·2 answers
  • Please help me please help me help please help me please
    13·1 answer
  • To decorate a cake, you make a shade of purple icing using 12 drops of red food coloring for every 18 drops of blue.
    5·1 answer
  • Which property will we need to use to solve the equation?<br><br> x - 10 = 5
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!