Question

A box contains 4 red balls and 6 green balls. If a ball is drawn at random, then find the probability that the ball is red.1/102/104/106/10

Answer 1

`(4)/(10)`

Step-by-step explanation

To calculate the probability of event A, divide the number of outcomes favorable to A by the total number of possible outcomes.

`P(A)=\frac{favourable\text{ outcomes}}{total\text{ outcomes}}`

so

Step 1

a)let

`\begin{gathered} favourable\text{ outcomes=red balls = 4 \lparen there are 4 red balls\rparen=4} \\ total\text{ outcomes= total balls= 4 red+6 green=10 balls=10} \end{gathered}`

b) now, replace in the formula and simplify

.

`P(A)=(4)/(10)=(2)/(5)`

therefore, the answer is

`(4)/(10)`

I hope this helps you