Question

A box contains 100 colored chips; some are yellow and some are green. John chooses a chip at random, records the color, and places it back in the bag. John has recorded 57 yellow chips and 19 green chips. Using these results, what is the predicted number of green chips in the box?
25
43
76
81

Answer 1

anyone?

Answer 2

What do you think it is?

Answer 3

no idea

Answer 4

can i give me the answer please iv been stuck on it for 10 minutes now

Answer 5

I can't tell the answer for sure, but think about it. Because John pulled out more yellow than green, then there's probably only a few green chips in the bag.

Answer 6

wait is it 25

Answer 7

he picked 19 + 57 = 76 in total.
19 of them were green. This ratio will be the same for 100 chips in the bag.

\[\frac{ 19 }{ 76 }=\frac{ x }{ 100 }\]

Answer 8

yes 25

Answer 9

Agree

Answer 10

thank you! can you help me with a few others?

Answer 11

Sure, go ahead

Answer 12

Henry tossed a coin several times and recorded the number of heads and tails in the following table:
side of coin:
heads
tails
number of tosses for heads: 12
number of tosses for tails: 18
What is the experimental probability of getting heads?
0.4
0.7
1.2
1.8

Answer 13

?

Answer 14

hello??

Answer 15

sorry, something happened with my internet and everything went down

Answer 16

But basically, since there were 30 flips of the coin in all, you have to divide the number of tries with heads vs total number of tries, like peachpi said earlier

Answer 17

so your answer ends up being 0.4