Question

Experimental Probability @Vandreigan Check My Answers

Answer 1

1. C
2. A
3. D
4C

Answer 2

1, 3 and 4 are correct. 2, I'm trying to figure out how they want you to approach it (in a real situation, the given information is not nearly enough to answer this question).

Answer 3

i mostly added all them up and took 45 out of 100 simplified

Answer 4

Which I think is the correct approach (since there are 100 people total in the cafeteria). We'd use that as a statistically significant sample of those headed toward the cafeteria, which would make your answer correct.

Answer 5

okay i have another sheet i need you to check.

Answer 6

i got 1 c and 2 and 3 i need help

Answer 7

1 isn't C.

Remember, choosing a box has no effect on the probability for your next box to have a prize. Just like flipping a coin once has no effect on the probability of your next flip to land heads.

Answer 8

Wait, sorry, one sec. EXPERIMENTAL probability. I may have spoken too early.

Answer 9

And I did indeed. You are correct.

Answer 10

ok thanks i need help with 2 and 3

Answer 11

Alright, the next question is basically asking "how many of these sets of numbers below only have a single number that is 0 through 5."

For instance: 51979 has 2 numbers that are in that range (5 and 1)

but 56789 only has one (the 5).

How many of those sets of numbers only have one number in that range?

Answer 12

am i finding the numbers that only have 1 digit in that range, or 2, or both

Answer 13

We only care about the ones that have only one number in that range

Answer 14

i found 6 numbers

Answer 15

6? Which ones? (I know this is kind of a pain to ask, but you found a different number than I did)

Answer 16

I'll recount, myself, as well.

Answer 17

did you recount?

Answer 18

Yeah. I don't get 6.

Answer 19

ok, you know the first column with the 3 numbers there are 0 in the first column

Answer 20

because 0 counts as well

Answer 21

in the digits

Answer 22

07972 has two numbers that are in the range 0-6

Answer 23

the range we are looking for is 0-5 and you said we need to find only 1 digit from that number so that number doesnt count

Answer 24

The numbers that I see, sorted by row:

56869, 18876
91977, 58678
89579

Answer 25

And right, 0-5. Typo.

Answer 26

well if you got 5 and i got 6 then i overcounted

Answer 27

Which happens (even when you've been doing this awhile!)

So, there are 30 total, and we found 5. So what's the probability?

Answer 28

5 out of 30

Answer 29

What does that reduce to?

Answer 30

1/6

Answer 31

There ya go :)

Answer 32

i just help with 3 part a

Answer 33

*need*

Answer 34

Well, we need to know how many of those sets represent 2 boys and a girl.

Heads represents a boy. Tails a girl. So you need to count how many combinations have, in any order, two heads and a tails.

Answer 35

9

Answer 36

I don't count 9. Count carefully.

Answer 37

8

Answer 38

Which makes our experimental probability what?

Answer 39

4 out of 20

Answer 40

i mean 8

Answer 41

Ok, which reduces to?

Answer 42

2/5

Answer 43

There ya go :)

Answer 44

well just 3 more pages in another post, but thanks so much

Answer 45

My pleasure :)

Good luck!