Ask Question
23 April, 18:20

Computer keyboard failures are due to faulty electrical connects (12%) or mechanical defects (88%). Mechanical defects are related to loose keys (27%) or improper assembly (73%). Electrical connect defects are caused by defective wires (35%), improper connections (13%), or poorly welded wires (52%). a) Find the probability that a failure is due to loose keys. b) Find the probability that a failure is due to improperly connected or poorly welded wires.

+3
Answers (2)
  1. 23 April, 18:38
    0
    Probability that a failure is due to loose keys = 0.2376

    Probability that a failure is due to improperly connected or poorly welded wires 0.078

    Step-by-step explanation:

    Given dа ta:

    P (A) = percentage of faulty electrical connections is 12% = 0.12

    P (B) = mechanical defects is 88% = 0.88

    P (C / B) = percentage of defects that are related to loose keys is 27% = 0.27

    P (D/B) = improper assembly is 73% = 0.73

    P (E/A) = defective wires is 35% = 0.35

    P (F/A) = improper connections is 13% = 0.13

    P (G/A) = percentage of poorly welded wire is 52% = 0.52

    a) Probability of being failure because of loose keys = 0.27/times 0.88 = 0.2376

    b) Improperly connected = 0.13/times 0.12 = 0.0156

    poorly welded wires = 0.52 / times 0.12 = 0.0624

    Probability of being failure because of improperly connected or poorly welded wires = 0.0156 + 0.0624 = 0.078
  2. 23 April, 18:38
    0
    a) 23.76%

    b) 7.8%

    Step-by-step explanation:

    a) probability that a failure is due to loose keys.

    loose key failure (27%) comes under mechanical failure (88%)

    hence, probability that a failure is due to loose keys = 0.27*0.88 = 0.2376 = 23.76%

    b) probability that a failure is due to improperly connected wire which comes under electrical failure = 0.12*0.13

    probability that a failure is due to poorly welded wires which comes under electrical failure = 0.52*0.12

    now, the probability that a failure is due to improperly connected or poorly welded wires. = 0.12 (0.52+0.13) = 0.078 = 7.8%
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Computer keyboard failures are due to faulty electrical connects (12%) or mechanical defects (88%). Mechanical defects are related to loose ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers