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Probabilistic Reasoning Videos 13 videos

TSI Math: Rolling Dice to Predict Probabilities
31 Views

Hakim rolled a standard 6-sided die 3000 times. Which of the following is the most reasonable prediction of how many times he rolled a five?

TSI Math: Predicting Probabilities with a Trick Coin
31 Views

Mercedes has a trick coin that's more likely to land on heads than on tails. She flipped the coin 1500 times, resulting in tails 450 times. What is...

TSI Math: Predicting a Sequence of Probabilities
55 Views

A standard deck of playing cards contains 4 different suits, each of which has 13 cards. Assuming the deck is shuffled, what is the probability of...

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TSI Math: Predicting Probabilities with a Trick Coin 31 Views


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Description:

Mercedes has a trick coin that's more likely to land on heads than on tails. She flipped the coin 1500 times, resulting in tails 450 times. What is the best estimate of the coin's probability of landing on heads?


Transcript

00:02

All right sy Mash members Mercedes has a trick coin

00:05

that's More likely the land on heads than on tails

00:08

She flipped the coin fifteen hundred times resulting in tales

00:11

only four hundred fifty times What's The best estimate of

00:14

the coins Probability of landing on heads To estimate the

00:21

probability of an event from experimental data will need to

00:24

make a ratio The probability of an event happening is

00:26

the number of times the event occurred during the total

00:29

number of trials Well we want to know the probability

00:32

of flipping heads so let's start with the number of

00:34

times mercedes flipped heads Well she flipped tails four hundred

00:37

fifty times and she flipped heads one thousand fifty times

00:41

probability then is a thousand fifty over the fifteen hundred

00:44

of trials or point seven or seventy percent So yeah

00:47

pretty good odds to get ahead if she calls out

00:50

eds Yeah so that's it The answer is c or 00:00:53.029 --> [endTime] shmoop

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