Question

The sample space for tossing a coin 4 times is {HHHH, HHHT, HHTH, HHTT, HTHH, HTHT, HTTH, HTTT, THHH, THHT, THTH, THTT, TTHH, TTHT, TTTH, TTTT}.

Determine P(no heads).

6.25%
25%
68.75%
93.75%

Answer 1

A makes the best answer for this question here

Answer 2

P(no heads) means getting tails in all four tosses. From the sample space, there is only one outcome that gives no heads: TTTT. Therefore, the probability of getting no heads is 1/16.

Converting to a percentage, we get:

1/16 = 0.0625 = 6.25%

Therefore, the answer is 6.25%.