Answer:
0.9
Step-by-step explanation:
Answer: 1000
Step-by-step explanation:
You just simply add a 0!
No because 30 minutes past 4 is 4:30. If he was still watching at 5:00 it would be more than double
Answer:
The interval that contains the middle 68% of the heights is from 52 inches to 60 inches.
Step-by-step explanation:
The empirical rule states that, for a normally distributed variable:
The middle 68% of the measures are within 1 standard deviation of the mean.
The middle 95% of the mesures are within 2 standard deviations of the mean.
The middle 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Normally distributed with mean 56 inches and standard deviation 4 inches.
So the interval that contains the middle 68% of the heights is from 52 inches to 60 inches.
Answer:
b
Step-by-step explanation:
you just need to devide them by each other