Question

If the probability of an event is
2/9. What is the probability of the complementary event?

Answer 1

Wouldn't it be 7/9? I'm somewhat iffy on my statistics lol :D

Yes, looking it up the answer WOULD be 7/9

Answer 2

I hate AP stats.

Answer 3

Deshawn built a model train car. The length of the model train car is 6 in. The scale Deshawn used to build the model train car is 1:36. What is the actual length of the train car in FEET? HELP ME :((((

Answer 4

Unless the answer is 18 feet(That'd be a short train), the answer is probably 36 x 6, or 216 feet :D
Assuming the "scale" is for 1 inch = 36 feet, not 1 inch= 36 inches.

Answer 5

Darthspectrum help me with this one

Answer 6

Hillgrove High School plays 3 soccer games. The team loses 2 of those games. According to the tree diagram, how many ways could this happen?

Answer 7

3 ways.
The only possibilities are
W L L
L W L
L L W

Answer 8

How about dis one?

Answer 9

There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the first one. What is the probability of Jamie picking a white marble and then a blue marble?

Answer 10

Since you have 10 marbles in the bag total, the original probability of picking a white marble is 3/10
The possibility of picking a blue marble suddenly increases to 7/9 when you pick another one, making the whole equation
(3/10) x (7/9)
or 21/90 which becomes .233333333

Answer 11

These are the only choices I have

Answer 12

A: 1/15

B: 21/100

C: 7/15

D: 7/30

Answer 13

It'd be D.

Answer 14

21/90 = 7/30

Answer 15

Thank You One more question

Answer 16

This one is kind of confusing to me

Answer 17

If a point on or inside the square is chosen at random, what is the probability that it is also on or inside the circle?

Answer 18

A: 8-pi/8

B: pi/8

C: 4-pi/8

D: pi/4

Answer 19

Does it give any measurements for the radius of the circle, or the length of the sides?

Answer 20

Nope thats the reason I am confused

Answer 21

If you take a circle's radius, as R, we know the area of the circle is pier^2
We also know the area of the square is (2r)^2

If we take (2r)^2, we get 4R^2
we know that the total fraction of area covered by the circle is the area of the circle divided by the area of the square.
So pieR^2 / 4 R^2 becomes
Pie/4

So the answer is D

Answer 22

Thank You