Understanding Probability Answers
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Jamal performed an experiment flipping a coin. He did 10 trials and then his arm got tired. He recorded his results in the table. Based on the experimental probability, Jamal predicted that the number of times the coin lands heads up will always be greater than the number of times it lands tails up. What is the error in his prediction?
A
He should have performed fewer trials before comparing them to the theoretical probability.B
He did not need to perform the experiment to compare theoretical and experimental probabilities.C
He should have subtracted the theoretical probability from the experimental probability.D
He did not perform enough trials to compare the theoretical and experimental probabilities.2
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Mali noticed that the observed frequencies did not match the predicted frequencies. What does she need to change in her experiment to get closer to the predicted values based on the theoretical probability for all the face cards?
A
increase the number of trialsB
decrease the number of trialsC
use a new deck of cardsD
only use number cardsDid you find these answers helpful?
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