a bag contains 33 green marbles and 25 blue marbles. you select a marble at random from the bag. find the theoretical probability of selecting a blue marble. thanks

Pr(blue)= number blue/total marbles

First, you would need to add 33+25 because you need to find the total number of marbles that are in the bag.

algebraic expression: 33+25=x

x=58

Next you would need to take the amount of blue marbles and make a fraction over the total amount. The fraction is 25/58. Therefore, the probability of selecting a blue marble is 25/38

First, you would need to add 33+25 because you need to find the total number of marbles that are in the bag.

algebraic expression: 33+25=x

x=58

Next you would need to take the amount of blue marbles and make a fraction over the total amount. The fraction is 25/58. Therefore, the probability of selecting a blue marble is 25/58

To find the theoretical probability of selecting a blue marble, you need to divide the number of blue marbles in the bag by the total number of marbles.

In this case, the number of blue marbles is 25, and the total number of marbles in the bag is 33 + 25 = 58.

So, the theoretical probability of selecting a blue marble can be calculated as:

Pr(blue) = number of blue marbles / total number of marbles
= 25 / 58

To simplify this fraction, you can divide both the numerator and denominator by their greatest common divisor, which in this case is 1. Therefore, the probability of selecting a blue marble is:

Pr(blue) = 25 / 58