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
Vesna [10]
3 years ago
13

EasyElectrics supermarket orders light bulbs from suppliers, AA Electronics and AAA Electronics. EasyElectrics purchases 30% of

its light bulbs from AA and 70% from AAA. Two percent of the light bulbs purchased from AA are defective, while three percent of the bulbs from AAA are defective. Find the probability that a randomly selected light bulb a) was purchased from AA and is defectivie b) is defective
Mathematics
1 answer:
saw5 [17]3 years ago
3 0

Answer: (a) 0.006

               (b) 0.027

Step-by-step explanation:

Given : P(AA) = 0.3 and P(AAA) = 0.70

Let event that a bulb is defective be denoted by D and not defective be D';

Conditional probabilities given are :

P(D/AA) = 0.02 and P(D/AAA) = 0.03

Thus P(D'/AA) = 1 - 0.02 = 0.98

and P(D'/AAA) = 1 - 0.03 = 0.97

(a) P(bulb from AA and defective) = P ( AA and D)

                                                       = P(AA) x P(D/AA)

                                                       = 0.3 x 0.02 = 0.006

(b) P(Defective) = P(from AA and defective) + P( from AAA and defective)

                         = P(AA) x P(D/AA) + P(AAA) x P(D/AAA)

                         = 0.3(0.02) + 0.70(0.03)

                         = 0.027

You might be interested in
The local service center advertises that it charges a flat
AleksAgata [21]
8 is slope 50 is y-intercept
6 0
3 years ago
What is the point-slope equation of the line with slope -12 that goes through the point (5,3)
nikklg [1K]

Answer:

the correct answer is c

Step-by-step explanation:

because we use formule when we write a equation

6 0
3 years ago
A two-digit numner is four times the sum and three times the product of its digits. Find the number.​
krok68 [10]

Answer:

24 i thik?

Step-by-step explanation:

6 0
3 years ago
Which of the following options have the same value as 30%t of 81?<br> Choose 3 answers:
vichka [17]
The three answers would be B , C , and E , Hope this helps
8 0
3 years ago
Read 2 more answers
Ill mark brainlistn plsshelp
Norma-Jean [14]

Answer:

the answer is 18 because you have to multiply 6 times 3 and get 18

7 0
3 years ago
Other questions:
  • What is the answer to the question?
    11·2 answers
  • Which theorem or postulate proves the two triangles are similar
    15·2 answers
  • What is the equation of a circle with center (8, 6) and radiuss5?
    8·1 answer
  • if the diameter of the table cloth measures 50 inches which measurement is closest to the area of the tablecloth
    8·1 answer
  • Anna and kim shared 49 jellybeans in the ratio 3:4.Howw many jellybeans did kim receive​
    7·1 answer
  • 54x^3 +250y^3<br> in the sum of cubes<br> please helpppp
    6·1 answer
  • Which statement is true
    9·2 answers
  • Complete the table for this equation. y=x+6
    8·1 answer
  • Geometry help!! Picture included
    7·2 answers
  • (q006) suppose you are a participant in an online forum where people review online games, and one participant recently posted an
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!