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
viktelen [127]
3 years ago
12

A light bulb factory produces 922 light bulbs every hour. Approximately 3.34% of the light bulbs are defective, and do not work.

Using the binomial distribution, what is the standard deviation of the number of defective bulbs produced in an hour
Mathematics
1 answer:
Nikitich [7]3 years ago
8 0

Answer:

The value is  \sigma = 5.46  

Step-by-step explanation:

From the question we are told that

  The number of light produced in an hour is  n  =  922

  The proportion of the bulb that are defective is  p =  0.0334

  Generally given from the question that we should use binomial distribution it then means that the standard deviation is mathematically evaluated as  

           \sigma = \sqrt{ n  *  p  (1-p)}

=>         \sigma = \sqrt{ 922  *  0.0334 *  (1-0.0334)}

=>         \sigma = 5.46  

You might be interested in
Share 1200kg in the ratio 3:37
bearhunter [10]

Answer:

3+37=40

3/40×1200=90kg

37÷40×1200=1110kg

Step-by-step explanation:

''.''

5 0
2 years ago
Read 2 more answers
I'll mark as Brainliest, Please answer ASAP, Ihave MCAS tomorrow. How could this be true?? Please Explain.​
iragen [17]

Answer:

D

Step-by-step explanation:

Put  m+2  in place of 'x'

   (m+2)^2 + 1               <======expand

   m^2 + 4m + 4       + 1   =

   m^2   + 4m + 5

8 0
2 years ago
Simplify the expression:<br><br> –3(9 − x) =
steposvetlana [31]

Answer:

Expand  -3(9-x): -27 + 3x

Step-by-step explanation:

-3(9-x)

Apply the distributive law: a(b-c)=ab-ac

a = -3, b=9, c=x

=-3*9-(-3)x

Apply minus - plus rules:

-(-a)=a

= -3*9+3x

Multiply the numbers: 3 * 9 = 27

=-27+3x

Hope this helps! If so, may I get Brainliest and a Thanks?

Thank you, have a good one! =)

6 0
3 years ago
Ms. Johnson's class completed 28,985 math problems in 85 weeks. There are 32 problems on each worksheet she gives out. How many
Hitman42 [59]
It's 292.5 problems per week
7 0
3 years ago
Read 2 more answers
Ritika bought 5 meters of cloth from the market. She cut off 2 3/4 meters and gave it to Aditi. What length of cloth is left wit
Mekhanik [1.2K]

Answer:

I think its 3/2

hope it will help you

7 0
3 years ago
Other questions:
  • Marco and his two younger sisters would like to purchase a silver charm bracelet for their mother’s birthday. they went to the m
    10·1 answer
  • Step by step plz plz plz plz
    11·2 answers
  • Given that segment AB is tangent to the circle shown in the diagram centered at point C, determine the value of x
    7·1 answer
  • Find the domain and range of the relation: (-3,9),(-3,8),(-3,7),(-3,6). Then determine whether the relation is a function.
    7·1 answer
  • A deck of ordinary cards is shuffled and 13 cards are dealt. What is the probability that the last card dealt is an ace?
    5·1 answer
  • Plz i need the answer today
    6·2 answers
  • Can someone help me with this quickly
    6·1 answer
  • 49 ÷ 7 =
    8·2 answers
  • A subway car travels at a rate of 32 meters per second. How far does it travel in 16 seconds? Use d= r x t
    5·1 answer
  • What is the rule of square numbers?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!