Two coins are tossed 10 times. Both coins land on
heads 6 times. Compare the experimental
probability to the theoretical probability. If
the probabilities are not close, explain a
possible reason for the discrepancy.

Step-by-step explanation:

The theoretical probability is what is expected while the experimental probability is what is derived after the experimentation.

Because a coin has two possibilities (heads or tails), they both have a 50% and 50% chance or ½ and ½ probability in a toss. However, the experimental probability shows that heads had a ³/5 probability which is slightly higher than the expected ½.

The main reason for the discrepancy is the sampling error. The number of tries done are too few to be a real statistical representative. The more the tosses of the coin, the more the experimental probability will get closer to the theoretical probability.  

  about 5.6 days

step-by-step explanation:

we can fill the given information into the decay equation and solve for the value of t at which half the sample remains.

the half-life is about 5.6 days.

a. she will receive a refund of $278.

step-by-step explanation: