Math 20-2 Statistics

In a normal distribution about 95% of the values fall within 3 standard deviations of the mean.

What is the mean of data?

a smaller standard deviation would result in?

what percent of data in a normal distribution falls between the 1st standard deviations

What was Floyd's actual score? 

Find median:

find the standard deviation of the following data set

Average height is 68.5 inches and the standard deviation is 3 inches. If you are 69.1 inches tall, what is your z-score?

find probability given -1.42 < z < 0.12

What was Benny's actual score? 

What percent of students score below 80?

Find the probability for the data that is normally distributed: 0.64 < z

find probability given 5.21 > z

Find the max temperature that gets rejected:

In a normal distribution curve, about ___ percent of the data is between the inflection points.

In statistics what is a mode?

The middle score or the average of two middle scores is calculating the...

How is the mean found?

The mean, median, and mode are all equal in a normal distribution.

What area is defined by the z score?