Given:
The number of chairs purchased is listed below:
Red: 150 White: 450
Green: 225 Blue: 375
Required:
To find the probability that the chair purchased will be red.
Step-by-step explanation:
Total number of chairs = 150 + 450 + 225 + 375
= 1,200
The number of red chairs = 150
The probability formula is given as:

Thus the probability that the chair will be res is:

Final answer:
The probability of a red chair is 0.125.