z score is a number used to measure position in a normal distribution You use this simulator to review this concept. Below is an "original distribution" of IQ scores with a mean of 100 and a standard deviation of 10. [br][br]Next to it is the "standard normal distribution"
In the above distribution, keep the mean at 100 and the standard deviation at 10.[br][br]Move the green point to 120. What is the z score?
In the above distribution, keep the mean at 100 and the standard deviation at 10.[br][br]Move the green point to 80. What is the z score?
In the above distribution, keep the mean at 100 and the standard deviation at 10.[br][br]Move the green point to 100. What is the z score?
Describe how the z score is calculated.
If you are given a normal distribution with mean 50 and standard deviation of 15. How standard deviations above the mean is 80? (---how many times can you add 15 to 50 to get 80?)
If the mean is 50 and the standard deviation is 15, calculate the z score of 80.
Look at the standard normal distribution. [br][br]What is the x value of the point?
The probability below the Z score is shown in each distribution.[br][br]Comparing the probability below the original point and the probability below the standard normal distribution, how are they related?
Get out your TI 84. [br][br]Find InvNorm using mean = 0, std = 1 and area = 0.98
Now move the distributions to get an area of 0.98.[br][br]What is the z score?