Kellie did an experiment where she flipped a coin 25 times. The results are recorded in the table below. Flip Result Flip Result Flip Result Flip Result Flip Result
1 H 6 T 11 T 16 T 21 T
2 H 7 T 12 H 17 T 22 H
3 T 8 H 13 T 18 H 23 T
4 T 9 T 14 H 19 T 24 T
5 H 10 T 15 H 20 T 25 H

What is the experimental probability of the coin landing on heads?

2/5

Step-by-step explanation:

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560