Answer:
2
Step-by-step explanation:
r(x) = 2 sqrt(x)
s(x) = sqrt(x)
r(x) / s(x) = 2 sqrt(x) / sqrt(x)
= 2
Answer:
0.903264
Step-by-step explanation:
Given that a TV set contains five circuit boards of type A, five of type B, and four of type C. The probability of failing in its first 5000 hours of use is 0.03 for a type A circuit board, 0.04 for a type B circuit board, and 0.03 for a type C circuit board.
Let A' = the event that A fails, B' = B fails and C'= C fails.
Probability that no circuit board fails = Prob (A'B'C')
= P(A')P(B')P(C') (since A,B, C are independent, their complements are independent
= (1-0.03)(1-0.04)(1-0.03)
= 0.903264
45 over 48 because 3 over 8 times 1 over 6 equals 3 over 48 and 48 take away 3 equals 45
