Question

I need help with math. I have a big exam coming up but I do t understand this lesson at all. Can I have help answering all the questions?

Answer 1

Step 1

Given;

`\begin{gathered} Head\text{ represent male} \\ Tail\text{ represent female} \end{gathered}`

The total number of puppies is 4 represented by 4 coins.

Step 2

Find the experimental probability that exactly 3 of the puppies will be female

`\begin{gathered} From\text{ table we find that THTT, TTHT, HTTT and HTTT are the only outcomes that } \\ \text{show exactly 3 females} \\ Remember\text{ tail\lparen t\rparen is for female puppies} \end{gathered}`

Therefore, the total number of samples/coin tosses=20

The formula for probability is;

`Pr\left(event\right)=\frac{Numberofrequiredevent}{Total\text{ number of events}}`

Total number of events =the total number of samples/coin tosses=20

Number of required events= outcomes with 3 T's from the tab;e=4

Hence.

`=(4)/(20)=0.2=0.2*100=20\text{\%}`

Answer;

`(4)/(20)=0.20=20\text{\%}`