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
lawyer [7]
3 years ago
14

A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. If 88 wood and 1111 graphite are defective an

d one racket is randomly selected from the​ sample, find the probability that the racket is wood or defective.
Mathematics
1 answer:
Tju [1.3M]3 years ago
8 0

The question is wrong since it is not possible to have 111 defective graphite rackets when the total number of graphite racket is 100.

Question:

A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. Assuming that If 88 wood and 90 graphite are defective and one racket is randomly selected from the​ sample, find the probability that the racket is wood or defective.

Given Information:  

Total wood = 100

Total graphite = 100

Defective wood = 88

Non-defective wood = 12

Defective graphite = 90

Non-defective graphite = 10

Required Information:  

Probability of racket being selected is wood or defective = ?

Answer:

P(wood or defective) = 0.95

Step-by-step explanation:

The probability of selecting a wood racket is

P(wood) = number of wood rackets/total number of rackets

P(wood) = 100/200 = 1/2

The probability of selecting a defective racket is

P(defective) = number of defective rackets/total number of rackets

P(defective) = 88+90/200 = 178/200 = 89/100

There is double counting of wood so we have to subtract the probability of wood and defective

P(wood and defective) = 88/200 = 11/25

P(wood or defective) = P(wood)  + P(defective) - P(wood and defective)

P(wood or defective) = 1/2 + 89/100 - 11/25

P(wood or defective) = 0.95

Alternatively:

P(defective) = number of defective rackets/total number of rackets

P(defective) = 88+90/200 = 178/200 = 89/100

P(wood and non-defective) = 12/200 = 3/50

There is no double counting here so we dont have to subtract anything

P(wood or defective) = P(wood)  + P(wood and non-defective)

P(wood or defective) = 89/100 + 3/50

P(wood or defective) = 0.95

You might be interested in
Hey guys it's been a while can you just help me with these two problems?​
lutik1710 [3]

Answer:

Your already right on both of them lol

Step-by-step explanation:

Pls brainliest thx! :D

7 0
2 years ago
Read 2 more answers
Which equation demonstrates the additive identity property?
Vika [28.1K]

we know that

Additive identity property:

If we add a real number to zero or add zero to a real number, then we get the same real number back.

The number zero is known as the identity element, or the additive identity.

For example: a+0 =a

we can see that adding gives same result

so, 0 is the additive identity here

Hence , option-B........Answer

4 0
3 years ago
Read 2 more answers
A triangular prism is 18 centimeters long and has a triangular face with a base of 12 centimeters and a height of 8 centimeters.
levacccp [35]

Answer:

672 sq cm

Step-by-step explanation:

Each triangular base is 1/2 (12 * 8) or 48, making them = 96.

One of the sides is 12 x 18 = 216

The other 2 sides are 10 x 18 = 180 x 2 = 360

Add them all together to get 672 sq cm

8 0
2 years ago
Solve: -6 (-2)÷4(-3)
Katen [24]

Answer:

-9

Step-by-step explanation:

Simplify the following:

-6×(-2)/4 (-3)

-6×(-2)/4 (-3) = (-6 (-2) (-3))/4:

(-6 (-2) (-3))/4

The gcd of -2 and 4 is 2, so (-6 (-2) (-3))/4 = (-6 (2 (-1)) (-3))/(2×2) = 2/2×(-6 (-1) (-3))/2 = (-6 (-1) (-3))/2:

(-6-1 (-3))/2

(-6)/2 = (2 (-3))/2 = -3:

--3 (-3)

-3 (-1) = 3:

3 (-3)

3 (-3) = -9:

Answer: -9

6 0
2 years ago
PLEASE HELP!! WILL GIVE BRAINLIEST!!
schepotkina [342]

Answer:

Please find attached pdf

Step-by-step explanation:

Download pdf
6 0
3 years ago
Other questions:
  • If Ozzie weighs 25oz and 11 lbs and Slugger 23oz and 24 lbs, and Charlie weighs 70x bigger what’s the weight)
    5·1 answer
  • Which equation yields the solutions x=−3 and x=−4?
    8·1 answer
  • In a clock, a large gear completes a rotation every 45 seconds, a small gear completes a rotation every 18 seconds. The gears al
    10·2 answers
  • Gilberto’s grandfather gives him $5 for his birthday and then $.50 for each math question he answers correctly on his math exams
    9·1 answer
  • Reallllllllyyyy neeeeeeeeeeeddd help
    5·2 answers
  • Please help me!! I’m behind and really need help!
    13·2 answers
  • A bag of Idaho potatoes weighs 47 pounds. If the average potato weighs to pound, how many are in
    14·1 answer
  • Pleaseeee hELPppP correct answer
    7·1 answer
  • 50 POINTS CORRECT ANSWER ONLY!!
    8·1 answer
  • Help -x/3 &gt; 5 <br><br> A. X&lt;15<br> B. X &gt; -15<br> C. X &lt; -15<br> D. X &gt; 15
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!