Answer the following questions:
(POGIL) Record your team's results for each run in a neatly organized table. That is, if you did 20 runs of 100 coin flips each, your table should have 20 rows of results, with percentages for each row and totals at the bottom.
1. (POGIL) According to your results, does App Inventor's PRNG provide a good model of randomness?
Answer
(check POGIL)
2. (POGIL) A friend claims that flipping a coin 100 times and finding that it comes up heads only 45% of the time shows that the coin is biased. How should you reply?
Answer
(POGIL)
3. Because we are using a coin flip app, this experiment really tests only that App Inventor's random integer block generates a 1 around half the time. Is this a sufficient test for App Inventor's PRNG? What other experiments might you do to increase your confidence in App Inventor’s PRNG?
Answer
In my opinion, this alone is a sufficient test for appinventor’s PRNG. This is due to the fact that the coin flip does not always yield 50/50 results, so we know that it’s random and not just programed to yield 50/50 results every time it is ran. Other experiments that could be performed to test the PRNG include a silimar test but one that emulates rolling a die. If it is random, then the results would be skewed but each category, 1-6, would have around ⅙ of the total roll value.