Answer: Our required probability is 0.947.
Step-by-step explanation:
Since we have given that
Number of light bulbs selected = 30
Probability that the light bulb produced in a facility are defective = 2.8% = 0.028
We need to find the probability that fewer than 3 defective bulbs are found.
We will use "Binomial distribution":
n = 30, p = 0.028
so, P(X>3)=P(X=0)+P(X=1)+P(X=2)
So, it becomes,
and
So, the probability that fewer than three defective bulbs are defective is given by
Answer:
1.125 h = 1h 7.5 min = 1 h 7 min 30 sec
Step-by-step explanation:
John makes 1/1.5 work per h.
His partner makes 1/4.5 work per h.
Together they make (1/1.5 + 1/4.5) = (3/4.5 + 1/4.5) = 4/4.5 work per h.
They will work
1 : 4/4.5 = 4.5/4 = 1.125 h = 1 h + 0.125 h = 1h + 0.125h*60min/1h =
=1h 7.5 min = 1 h 7 min 30 sec
Answer:
$52.96
Step-by-step explanation:
To find the total cost of his clothing, add up the prices of everything he bought.
Jeans: $23.00
Shirt: $14
Ties: 2 ties for $7.98 each.
Each tie costs $7.98, and the man bought two ties. Therefore, multiply 2 and $7.98
2*$7.98 = $15.96
Add all the prices together.
jeans + shirt + ties
$23 + $14 + $15.96
$37 + $15.96
$52.96
The total cost of his clothing is $52.96
Answer:
All of the above are true
Step-by-step explanation:
If you look at the first answer choice, you can see that line "s" and line "t" interest at one point. So the first answer choice is definitely true, but we have to continue looking at other answer choices to make sure.
All lines that intersect must intersect at a point, and in the photo that point is established as Point P. This makes the second answer choice also correct.
If we look at the third answer choice and the photo, we can see that point P is definitely on line t and s (when there are two lines intersecting at a point, that point is on those two lines). This shows that the third answer choice is also correct.
Since the fourth answer acknowledges that all of the other answers are correct, it is the correct answer.