Question

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Suppose 10% of the flights arriving at an airport arrive early, 60% arrive on time, and 30% arrive late. Valerie used the random-number table to find the experimental probability that of 5 flights, at least 2 will arrive late. The digit 0 represents flights arriving early. The digits 1, 2, 3, 4, 5, and 6 represent flights arriving on time. The digits 7, 8, and 9 represent flights arriving late. Find the experimental probability that of 5 flights, at least 2 will arrive late.

Answer 1

https://www.connexus.com/content/media/666994-6302012-113443-AM-1827366803.png

Answer 2

Find the experimental probability that of 5 flights, at least 2 will arrive late.

Answer 3

@Hero

Answer 4

@jigglypuff314

Answer 5

@nincompoop

Answer 6

@jabez177

Answer 7

@jabez177

Answer 8

Okay, so experimental probability is the probability of a given event based upon experimental data.
In other words, experimental probability needs an experiment. So let's give it one!
Wait... to do this, is requires a random number table, thus acquirable from a Google search.

Answer 9

http://stattrek.com/statistics/random-number-generator.aspx

Answer 10

2/5

Answer 11

Okay, so let's see...
We only need 5 numbers per experiment, so you got that table right.

Answer 12

is not 2/5... I know that because that was my answer and I got it wrong... I'm doing corrections.

Answer 13

So, if 1-6 are on time, and 7-9 are late, use this to translate each number on your table.

Answer 14

The first block is this set of numbers

65926

it tells us that "The digits 7, 8, and 9 represent flights arriving late."

The digits "6", "5", "2" and "6" are on time arrivals

the only late flight is the one "9" that pops up in the middle

So in the first block of 5 flights, there is only one late arrival

Answer 15

right?

Answer 16

You're on a roll! Now, translating that into math language, the probability of being on-time is 4/5. But, we don't have enough info yet.
That's where the other boxes come in. Let's put that number on the side and keep going.

Answer 17

move to the next block in the same row (row 1)

31459

it tells us that "The digits 7, 8, and 9 represent flights arriving late."

The digits "6", "5", "2" and "6" are on time arrivals

The only late flight is the one"9"
so in the second block of 5 flights there is only one late arrival

Answer 18

Yep! 4/5 again.

Answer 19

Oh, shoot. It says,
"Find the experimental probability that of 5 flights, at least 2 will arrive late."
Oh well. The probability so far is 0. Why? Because we didn't get any where 2 or more people were late, right? Carry on.
You don't have to message every individual box. Trust me, your fingers will fall of. ;p

Answer 20

move to the next block in the same row (row 1)
31986
it tells us that "The digits 7, 8, and 9 represent flights arriving late."
The digits "6", "5", "2" and "6" are on time arrivals
The only late lights this time are "8" and the "9"
so in the third block of 5 flights there are 2 late arrivals.

Answer 21

@RiverShinesDragon

Answer 22

Good! And that's the third block, right?
This one's our only winner! And so, since we have 1 successful block out of 3 total blocks. the experimental probability that of 5 flights, at least 2 will arrive late is 1/3.
But that's only so far.

Answer 23

you want me to keep going?

Answer 24

@RiverShinesDragon

Answer 25

Yeah, but if you have a piece of paper, keep that with you, and write down the block results there instead of on here. Then, your fingers will be okay. ;p
Then, based on what you know, tell me how many blocks are successful.

Answer 26

lol, okay

Answer 27

Also remember that a successful block is when 2 or more people are late.

Answer 28

move to the next block in the same row (row 1)
65809
It tells us that "The digits 7, 8, and 9 represent flights arriving late."
The digits "6", "5", "2" and "6" are on time arrivals
The only late flights this time are "8" and the "9"
So in the fourth block of 5 flights there are 2 late arrivals.

Answer 29

So far, we have 2/4, or 1/2 because we have 2 successful blocks out of four total blocks.

Answer 30

move to the next block in the same row (row 1)
80462
It tells us that "The digits 7, 8, and 9 represent flights arriving late."
The digits "6", "5", "2" and "6" are on time arrivals
The only late flight is the one”8”
So in the fifth block of 5 flights there is only one late arrival.

Answer 31

Okay, so now the probability is 2/5 because we have 2 successful blocks out of 5 total blocks.

Answer 32

Sorry, gotta go. So far, you got this. I bet you can finish it with an A+.

Answer 33

thank you