An experiment is conducted with a bag of marbles containing 5 red and 2 blue marbles. The results of a marble being drawn twice and replaced 100 times are shown in the table.
Outcome Frequency
Red, Red 19
Red, Blue 32
Blue, Blue 21
Blue, Red 28
Find P(1 red).
32 over 100
50 over 100
60 over 100
73 over 100
To find the probability of drawing 1 red marble, we need to add the frequencies of getting Red, Blue and Blue, Red.
P(1 red) = (32 + 28) / 100 = 60/100 = 0.6
Therefore, the probability of drawing 1 red marble is 0.6 or 60%.
So, the answer is 60 over 100.