Total number of bulbs = 64
Number of defective bulbs = 10
Number of good bulbs = 64 - 10 = 54

P(5 good bulbs) = (54/64)⁵ = (27/32)⁵ = 0.428

Answer: 0.428

3 0

3 years ago

What is the probability that at least one of a pair of fair dice lands of 5, given that the sum of the dice is 8?

o-na [289]

Answer:

0.40

Step-by-step explanation:

to find out the probability that at least one of a pair of fair dice lands of 5, given that the sum of the dice is 8

Let A = sum of dice is 8

B = one lands in 5

P(B/A) = P(AB)/P(A) by conditional probability

P(AB) = sum is 8 and one is 5

So (5,3) or (3,5)

P(A) = sum is 8.

i.e. (2,6) (2,6) (3,5) (5,3) (4,4)

Required probability

= n(AB)/n(A)

= $\frac{2}{5} =0.40$

4 0

3 years ago

a rectangular picture frame has a width of 9 cm and a length of x cm. which expression represents the perimeter of the picture f

Semmy [17]

The question is asking to choose among the expression that represents the perimeter of the picture frame where as a rectangular picture frame has a width of 9cm and length of x cm and base on the fact, I would say that the answer would be 2x times 18. I hope you are satisfied with my answer

6 0

3 years ago

Read 2 more answers

If 10% is deducted from a bill, $58.50 remains to be paid. How much is the bill?

patriot [66]

Answer:

got u

Step-by-step explanation:

$64.35

58.50 plus 10% equals 64.3t

7 0

2 years ago