Multiple choice

A coin is tossed 25 times and the data is recorded as follows: Hand 15 Tail 10 The probability is not getting a head is

  1. $ \displaystyle \frac{1}{2} $
  2. $ \displaystyle \frac{2}{5} $
  3. $ \displaystyle \frac{3}{5} $

  4. 0
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B Correct answer
Explanation

The recorded number of tails is 10 out of 25 tosses. The experimental probability of not getting a head is therefore 10/25 = 2/5.

AI explanation

The total number of tosses recorded in the empirical probability experiment is 25. The number of times a head did not appear, meaning a tail appeared, is 10. Using the empirical probability formula of observed favorable outcomes divided by total trials, the probability is 10 divided by 25, which simplifies to 2/5.

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