SOLUTION: sarwar has alot of time on his hands so he starts to toss a coin and count the number of times it comes up heads. he finds that out of 1000 tosses he gets heads 487 times and tails

Algebra.Com
Question 857805: sarwar has alot of time on his hands so he starts to toss a coin and count the number of times it comes up heads. he finds that out of 1000 tosses he gets heads 487 times and tails 513 times. a) calculate the experimental probability of getting heads when tossing the coin, b) explain whether or not you think the coin he was tossing was a fair coin c) sarwar notices a strange thing: his last eight tosses were all tails. if he were to toss it one more time do you think it would more likely come up heads or tails? Explain
Answer by JulietG(1812)   (Show Source): You can put this solution on YOUR website!
The probability of getting heads is 1 in 2. There are only two options.
In a sample size of 1000, the standard deviation is 15.811.
So, you would expect somewhere between 484 - 516 of the tosses to come up head (or tails). It is a fair coin.
If he tosses it again, it still has an even probability of coming up heads or tails. You've already established that it's a fair coin.

RELATED QUESTIONS

Stephen flips a fair coin 7 times and each time it comes up heads. What is the... (answered by ikleyn)
Kyle stands on a street corner tossing a coin. He decides he will toss the coin 10 times, (answered by solver91311)
Dave stands on a street corner tossing a coin. He decides to toss the coin 10 times,... (answered by stanbon)
I need someone to answer to this problem before my exams! I would like if he/she can... (answered by math1239028)
Tom has three coins. Two are fair and one is an unfair coin weighted so that heads is... (answered by Edwin McCravy)
Tom has three coins. Two are fair and one is an unfair coin weighted so that heads is... (answered by Boreal)
Suppose you toss a coin 25 times, and it lands heads up 13 times. Compare the... (answered by ewatrrr)
I need someone to answer to this before my exams!! I would like if he/she can share... (answered by ScientificArt)
Another experiment is performed using coins. This time, the experimenter starts with 4... (answered by lynnlo)