How To Read Z Score
Music is made up of a variety of symbols the most basic of which are the staff the clefs and the notes.
How to read z score. For example consider a data set with a mean of 50 and a standard deviation of 2. If a z score is equal to 0 it is on the mean. Go to the column that represents the second digit after the decimal point the hundredths digit of your z value. For example if you are a 60 year old female a z score compares your bone density to the average bone density of 60 year old females. A positive z score indicates the raw score is higher than the mean average.
A negative z score reveals the raw score is below the mean average. How to read sheet music step 1. For example if a z score is equal to 1 it is 1 standard deviation above the mean. Z score also known as the standard score indicates how many standard deviations an entity is from the mean. This will be the case anytime the mean and the data value are the same.
Since probability tables cannot be printed for every normal distribution as there is an infinite variety of normal distribution it is common practice to convert a normal to a standard normal and then use the z score table to find. Here you want the probability that z is between 1 0 and 1 0. If a data value also is 50 then the z score is. Then find the value where the row for 1 0 intersects with the column for 0 00 which is 0 8413. A z score compares your bone density to the average bone density of people your own age and gender.
In order to find out how well helen did her iq test points need to be converted to a standardized z score using the following formula. All music contains these fundamental components and to learn how to read music you must first familiarize yourself with these basics. In part a 73 had a z score of 1 34615 with a cumulative area to the left of 0 0901 or 9 01. Learn the basic symbols of notation. A z score of zero means that the data value equals the mean.
74 62 11 1 09090909. To find the percentage of the area that lies above the z score take the total area under a normal curve which is 1 and subtract the cumulative area to the left of the z score. Intersect the row and column from steps 1 and 2. Go to the row that represents the ones digit and the first digit after the decimal point the tenths digit of your z value. To find the probability that z is between two values use the z table to find the probabilities corresponding to each z value and then find the difference between the probabilities.