Question

what is the probability of choosing a green
marble from a jar containing 5 red, 6 green and
4 blue marbles?

Answer 1

6/15
2/5
hope it helps you

Answer 2

Given,

A jar contains 5 red, 6 green, and 4 blue marbles.

To find,

The probability of choosing a green marble from the jar.

Solution,

We can simply solve this mathematical problem using the following process:

Mathematically,

The probability of occurrence of a favorable event = P (favorable event)

= (Total number of occurrence of the favorable event) / (Total number of occurrence of all possible events)

= (Total number of occurrence of the favorable event) / (Total number of trials)

As per the given question;

The favorable event is the occurrence of green marble from the jar.

So, the frequency of occurrence of the favorable event

the frequency of occurrence of the favorable event = number of green marbles in the jar = 6

And, the total number of trials

= total number of marbles in the jar

= number of red marbles in the jar + number of green marbles + number of blue marbles

= 5+6+4 = 15

So, the probability of choosing a green marble from the jar

= (Total number of occurrence of the favorable event) / (Total number of trials)

= (frequency of occurrence of the favorable event)/(total number of marbles in the jar)

= (number of green marbles in the jar)/(total number of marbles in the jar)

= 6/15 = 2/5 = 0.4

Hence, the probability of choosing a green marble from the jar is equal to 0.4.