Final answer:
The probability of selecting a white ball from a bag of 48 red balls and 9 white balls is 1/7.
Step-by-step explanation:
The probability of drawing a white ball from a bag containing 48 red balls and 9 white balls is calculated by dividing the number of white balls by the total number of balls. So, the probability is 9 (the number of white balls) divided by 57 (the total number of balls, which is 48 + 9).
To find this probability:
Count the total number of balls in the bag. There are 48 red + 9 white = 57 total balls.
Identify how many of those balls are white. There are 9 white balls.
Divide the number of white balls by the total number of balls: Probability(white) = 9 / 57.
This simplifies to Probability(white) = 1 / 7, because both 9 and 57 can be divided by 9.