Question

If you Also three coins, what is the panubiiy ahat at en che of the coins lands heads? ) If you pick a card from a suffled standard deck what is the probability of picking an fear a clay?

Answer 1

7/8

Step-by-step explanation:

Probability of getting at least 1 head = 1 - probability of getting no head

The outcome we get from tossing a coin is either a ead or tail

Probability of head = 1/2

probability of getting no head = {TTT} = 1/8

`\text{Possible outcome = }\lbrace\text{HTT}\rbrace,\lbrace THT\rbrace,\lbrace TTH\rbrace,\text{ }\lbrace\text{TTT}\},\lbrace\text{HHH}\rbrace,\lbrace HHT\rbrace,\lbrace HTH\rbrace,\lbrace HHT\rbrace`

Probability of getting at least 1 head = 1 - 1/8

`\begin{gathered} \\ =\text{ }(1)/(1)-(1)/(8) \\ =\text{ }(8-1)/(8) \\ =\text{ 7/8} \\ \end{gathered}`