Question

Liz flips a coin 60 times. The coin lands heads up 42 times and tails up 18 times. Complete eachstatement.The theoretical probability of the coin landing heads up is [%.

Answer 1

Given:

The number of times coin flipped is N = 60.

The number of heads is n(H) = 42.

The number of tails is n(T) = 18.

The objective is to find the theoretical probability of coin landing heads up.

Step-by-step explanation:

The general probability of coin landing heads is,

`P(H)=(n(H))/(N)\text{ . . . . . .(1)}`

On plugging the given values in equation (1),

`P(H)=(42)/(60)=0.7`

To obtain the percentage of probability,

`\begin{gathered} P(H)=0.7*100 \\ =70\text{ \%} \end{gathered}`

Hence, the probability of the coin landing heads up is 70%.