Question

two coins are tossed simultaneously 500 times. The table shows the frequencies of the outcomes for the pair of coins.OUTCOME. NO TAILS. NO TAILS. TWO TAILSFREQUENCY. 119. 264. 117If the same ywo coins are tossed to create an additional 1,000 outcomes what will be the probility of two heads?

Answer 1

We have the following table for the results of the experiment:

No tails: 119

One tail: 264

Two tails: 117

If we assume that this table represents the actual frequency of the experiment, we can calculate the expected frequency for additional outcomes.

If what we want is to calculate the probability of "two heads" (event that is equivalent to "no tails"), we can directly use the frequencies of the table:

`P(\text{`

NOTE: for two fair coins (p=0.5) the expected frequency for "two heads" is 0.25, but in this case we use the frequency given in the table.

Answer: the probability of two heads is 0.238.