You subtract 7% from 32=29.76
Then you subtract 8% from 29.76=27.379
Answer:
you combine the numbers that are the same and see the signs if it's positive with the negative, it's going to be negative
The number is two hundred ninety- one.
Answer: The percent of red lights last between 2.5 and 3.5 minutes = 95.44% approx.
Step-by-step explanation:
Given: Mean time = 3 minutes
standard deviation = 0.25 minutes
The probability of red lights last between 2.5 and 3.5 minutes :-

The percent of red lights last between 2.5 and 3.5 minutes = 95.44% approx.