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
twice the smaller of two consecutive integers increased by the larger integer is at least 25. what is the number?
stira [4]
x,x+1-\ two \ consecutive\ numbers\\\\
2x+x+1\geq25\\\\
3x+1\geq25\ \ \ | subtract\ 1\\\\
3x\geq24\ \ \ | divide\ by\ 3\\\\
x\geq8\\\\
It\ is\ 8\ or\ greater\ number.
3 0
3 years ago
Helppppp will give the crown
Drupady [299]
-√121
10 1/11
10.13
10.2 repeating
3 0
2 years ago
Read 2 more answers
. Which of the following is a rational expression?<br><br> 1/x<br> 3x-4<br> x^2+x<br> x/2
Mice21 [21]

Answer:

1/x

Step-by-step explanation:

1/x is rational because the x is in the denominator of the fraction.  x/2 could be rewritten as (1/2)x, which is linear.

8 0
3 years ago
Life or death situation!!!<br> Can someone please help me with this
levacccp [35]

Answer:

Step-by-step explanation:4 quarters

4 0
3 years ago
What is equivalent to 3(5+4)
Elden [556K]

Answer:

27

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 30. Justify Reasoning The quotient of two negative integers results in an integer. How does the value of the quotient compare to
    12·1 answer
  • The function f(x) = 40sin(0.1x + 12) + 50 represents the number of items, f(x), made in a factory each day for x days. The data
    15·2 answers
  • Pelase answer the question in the picture
    10·1 answer
  • What's an expression with a value of 12
    9·2 answers
  • If Jane paid $42 for the penalty last month, how many times was she late for work?
    8·1 answer
  • What is the missing number?<br><br> Question 4 options:
    9·1 answer
  • You are purchasing drywall for a remodeling job. Mike’s Drywall charges a delivery fee of $25 and charges $10 per
    7·1 answer
  • Solve 4(2x-5)=5x+4 pls​
    12·2 answers
  • A class votes for their class President Kennedy receives 21 votes which is 6% of the vote what is the total number of students w
    13·2 answers
  • Write an inequality for the following graph
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!