This topic contains a solution. Click here to go to the answer

Author Question: Find the probability at least 3 children do not recognize their mother's voice. What will be an ... (Read 68 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
Find the probability at least 3 children do not recognize their mother's voice.
 
  What will be an ideal response?

Question 2

What is the probability that both man and woman are working?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Viet Thy

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

P(X  3 ) = 0.323 (Here P = 0.10 )

Answer to Question 2

P(both man and woman are not working) = 1 - .88 = 0.12
P(woman doesn't work  man doesn't work) = 0.40
P(man does not work) = P(both man and woman are not working) / 0.40
= 0.12 / 0.40 = 0.30
P(man does not work) = P(man doesn't work and woman doesn't work)+
P(man doesn't work and woman works)
Then, 0.30 = 0.12 + P(man doesn't work and woman works)
Hence, P(man doesn't work and woman works) = 0.30 - 0.12 = 0.18
P(woman does work) = P(woman works and man works) +
P(woman works and man does not work)
Then, 0.40 = P(woman works and man works) + 0.18
Hence, P(woman works and man works) = 0.40 - 0.18 = 0.22




kamilo84

  • Member
  • Posts: 495
Reply 2 on: Jun 24, 2018
Gracias!


chereeb

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

For a complete list of videos, visit our video library