Question

At summer camp 20% of the students come from out of state. Megan wants to simulate cabins of 8 campers. She generates random digits from 0 to 9 and lets the digits 0 and 1 represent a camper from out of state.



The table:

69531217; 89542756; 89001254; 01346895; 12468503
20312346; 79564328; 59868542; 75891003; 56103249
58630126; 57498510; 76134860; 52974168; 03164985
03289642; 68533236; 94210145; 70215789; 32605254



What is the experimental probability that in a cabin of 8 campers, at least 2 are from out of state?

A. 7/20
B. 13/20
C. 7/10
D. 4/5

Is it B?


What is the experimental probability that in a cabin of 8 campers, none is from out of state?

A. 1/20
B. 1/10
C. 1/5 **?
D. 1/4

Answer 1

Ms. Sue? Reed? Can someone help me? Thank you!

Answer 2

For question one, you need to look at each number (of eight digits) which represents 8 campers. Any digit 0 or 1 represents out-of-state campers.
Count how many of the 20 numbers contain at least two of 0 or 1.
For example, the first number is 6953<b>1</b>2<b>1</b>7
which means that there are two (satisfies "at least two") out-of-state campers. So it counts as one success out of the 20 "experiments". Repeat for the other 19 numbers and give the count, divided by 20 experiments as the count.

(2) For this, you have to count (as success) the number of numbers with no 0 and no 1. (example: 89542756).
Do the same for all 20 numbers and count the number of successes.

Answer 3

So... are those answers I got right?

Answer 4

Yes, they are correct!
I didn't notice you gave answers, sorry.

Answer 5

C
D
B
C

Answer 6

Thank You, Your Mom :) <3

Answer 7

1. C
2. D
3. B
4. C

Answer 8

1. C
2. D
3. B
4. C
100%
Thanks guys!