In 3 billion repetitions of an experiment, a random event occurred in 500 million cases. we would expect the probability of this event to be close to:

6
1/6
3/5

The expected probability of an event is close to:

1/6

Step-by-step explanation:

It is given that:

In 3 billion repetitions of an experiment, a random event occurred in 500 million cases.

We know that:

1 billion is equal to 1000 million.

( Since 1 billion=10^9

and 1 million =10^6

Hence 1 billion=10^3 million)

Hence, 3 billion=3000 million.

Hence, the probability of the event is the ratio of how many times it occurred to the number of times an experiment has been performed.

Hence, the probability is calculated as:

Hence, the probability of an vent is:

1/6

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3