Question

Maia flips a dime four times. What is the probability that she will get at least two heads?

Answer 1

`\text{Probabilty = 11/16 = 0.6875}`

Step-by-step explanation:

we can only have a head or a tail when we flip

A dime flipped 4 times, the sample space of that:

HHHH, HHHT, HHTT, HTTT, TTTT, THHH, TTHH, TTTH, THTH, HTHT, HTTH, THHT,

For the total possible outcome of flipping a coin, we use the formula:

2^(number of times dimewas flipped) = 2^4

Total possible outcome = 16

To have atleast 2 heads = HHHH, HHHT, HHTT, THHH, TTHH, THTH, HTHT, HTTH, THHT, HTHH, HHTH = 11

Probability of atleast two heads:

`\begin{gathered} Probability=\text{ 11/ 16} \\ \text{Probability = 0.6875} \end{gathered}`