nsg0686
15.04.2020 •
Mathematics
A coin is tossed 100 times. Consider the following statements:
I. The expected value for the number of heads is 50.
II. The number of heads will be 50.
III. The number of heads will be around 50, give or take 5 or so.
Which one(s) is(are) correct?
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Ответ:
1. and III.
Step-by-step explanation:
Option 1 and 3 are correct.
The probability of landing on heads would be 1/2, so 50 times in 100. This is the expected outcome, so option 1 is correct.
However, that is just the most probable outcome, probability is almost never 100% accurate. Therefore, the number of heads will most likely be 50, give or take 5 or so. Therefore, option 3 is also correct.
Ответ: