Jennifer flipped a pair of coins 60 times. On 24 occasions, heads appeared on both coins. How is this outcome different from the expected outcome?

A) It occurred 6 fewer times than expected.
It occurred 4 more times than expected.
It occurred 9 more times than expected.
It occurred 4 fewer times than expected.

2 answers

expected=1/2 * 1/2=1/4
expected number = 60/4=30
so it occured...
Thanks!