At an intersection, the red-light times are normally distributed with a mean time of 3 minutes and a standard deviation of 0.25 minutes. Using the empirical rule, approximately what percent of red lights last between 2.5 and 3.5 minutes?

95%

Step-by-step explanation:

According to the empirical rule,

68% of the distribution falls within 0ne standard deviation of the mean.

95% percent falls within two standard deviations of the mean

99.7% falls within three standard deviations of the mean.

The red-light times are normally distributed with a mean time of 3 minutes and a standard deviation of 0.25

2.5=3-2(0.25)

3.5=3+2(0.25)

We can see that 2.5 is two standard deviations below the mean, and 3.5 is two standard deviations above the mean.

Hence the percentage of red lights that lasts between 2.5 and 3.5 is 95%

The answer is 95% from calculation

Step-by-step explanation:

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation:

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.