A box contains five blue, eight green, and three yellow marbles. If a marble is selected at random, what is the probability that it is not blue?
Total number of marbles = 5+8+3 = 16
Marbles which are not green = 5+3 = 8
P(not green) = 8/16 = 1/2
Well, if we're talking about marbles, then I guess we're rolling with some colorful humor! So here's the probability situation in a nutshell:
We have a total of 5 blue marbles, 8 green marbles, and 3 yellow marbles. To determine the probability of picking a marble that is not blue, we need to calculate the number of marbles that are not blue and divide it by the total number of marbles.
So, if we subtract the number of blue marbles (5) from the total number of marbles (5 + 8 + 3 = 16), we'll get the number of marbles that are not blue (11).
Therefore, the probability of selecting a marble that is not blue is 11/16.
And just like that, we've solved the colorful mystery! Keep rolling with the laughs, my friend!
To find the probability that a marble is not blue, we need to calculate the ratio of the number of marbles that are not blue to the total number of marbles.
The number of marbles that are not blue includes both green and yellow marbles. There are 8 green marbles and 3 yellow marbles, so the total number of marbles that are not blue is 8 + 3 = 11.
The total number of marbles in the box is 5 + 8 + 3 = 16.
Therefore, the probability that a marble selected at random is not blue is 11/16.
To find the probability that a marble is not blue, we need to determine the total number of marbles that are not blue and divide it by the total number of marbles in the box.
Given that there are five blue, eight green, and three yellow marbles, we can calculate the total number of marbles as:
Total marbles = Number of blue marbles + Number of green marbles + Number of yellow marbles
= 5 + 8 + 3
= 16
The number of marbles that are not blue is the sum of green and yellow marbles:
Number of marbles that are not blue = Number of green marbles + Number of yellow marbles
= 8 + 3
= 11
Therefore, the probability of selecting a marble that is not blue is:
Probability = Number of marbles that are not blue / Total number of marbles
= 11 / 16
≈ 0.6875 or approximately 68.75%
So, the probability that a marble selected at random is not blue is approximately 0.6875 or 68.75%.