Question

A coin is tossed 8 times. Which of the following represents the probability of the coin landing on heads all 8 times?

Answer 1

1/256

Step-by-step explanation:

Answer 2

`\large\boxed{\large\boxed{Probability=1/256\approx 0.0039}}`

Step-by-step explanation:

Since, there are two possible outcomes for every toss (head or tail), the sample space for a coin tossed 8 times is 2×2×2×2×2×2×2×2 = 2⁸ = 256.

Landing on heads all 8 times is just one of the possible outcomes: HHHHHHHH ⇒ 1.

Hence, the probability is calculated from its own definition:

Probability = number of favorable outcomes / number of possible outcomes

• 
  `Probability=1/256\approx 0.0039\text{ }\leftarrow answer`