Here is the answer , and the explanation is written with it .
72.28 i took the test it was easy bro
Answer:
see below
Step-by-step explanation:
1.
1, H - 2, H - 3, H - 4, H - 5, H
1, T - 2, T - 3, T - 4, T - 5, T
2.
2,H is one out of 10 possible outcomes, so the probability is 1/10
31 is (1)
3 females out of 5 widowed students, 3/5 = 0.6 which is 60%.
the answer for 30 is 10/30 or 33.3%, which isn't an option
Just use a calculator and you will get -1/2