3+4+5=12 potatoes
probability of first one being yellow is 4/12 reduces to 1/3
without replacement
probability of second being yellow is 3/11
<span>probability of both is : 1/3 * 3/11 = 3/33 = 0.09</span>
Answer:
There is a 73.11% probability that at least 2 machines will break down on a given day.
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem we have that:
There are 4 machines, so
.
The probability that on a given day any one machine will break down is 0.53. This means that
.
What is the probability that at least 2 machines will break down on a given day?

In which




So

There is a 73.11% probability that at least 2 machines will break down on a given day.
Answer:
D) 30
Step-by-step explanation:
1/2 in. = 3 ft.
5" = 10 x 1/2"
10 x 1/2" = 10 x 3'
5" = 30'
Well there's no image but the sum of -8 and 4 is -4. Then -4+-2 is -6. If that helps anything.
Find the volume of the icicle using the formula V = PI x r^2 x h/3
Volume = 3.14 x 4.5^2 x 120/3
Volume = 3.14 x 20.25 x 40
Volume = 2543.4 cubic mm.
Now divide the total volume by the drip rate:
2543.4 / 75 = 33.9 minutes.
The answer is D.