Normal distribution and z-scores lessons
9 animated step-by-step lessons (Statistics and probability). Standardise values with z-scores and find normal probabilities.
Showing 1–9 of 9
- Video lesson0:35Statistics and probabilityHigh school3 stepsA score of 85 comes from a distribution with mean 70 and standard deviation 10. Find its z-score
Normal distribution and z-scores
- Video lesson0:37Statistics and probabilityHigh school3 stepsA score of 62 comes from a distribution with mean 75 and standard deviation 8. Find its z-score
Normal distribution and z-scores
- Video lesson0:35Statistics and probabilityHigh school3 stepsA score of 130 comes from a distribution with mean 100 and standard deviation 15. Find its z-score
Normal distribution and z-scores
- Video lesson0:36Statistics and probabilityHigh school3 stepsA score of 3.5 comes from a distribution with mean 3.0 and standard deviation 0.4. Find its z-score
Normal distribution and z-scores
- Video lesson0:36Statistics and probabilityHigh school3 stepsA score of 40 comes from a distribution with mean 50 and standard deviation 5. Find its z-score
Normal distribution and z-scores
- Video lesson0:26Statistics and probabilityHigh school2 stepsFind P(-1 < Z < 1) for a standard normal variable
Normal distribution and z-scores
- Video lesson0:26Statistics and probabilityHigh school2 stepsFind P(-2 < Z < 2) for a standard normal variable
Normal distribution and z-scores
- Video lesson0:25Statistics and probabilityHigh school2 stepsFind P(0 < Z < 1.5) for a standard normal variable
Normal distribution and z-scores
- Video lesson0:27Statistics and probabilityHigh school2 stepsFind P(-1.96 < Z < 1.96) for a standard normal variable
Normal distribution and z-scores