Home theater expansion capable for cinema-like soundâand a seamless home theater designâwhen you combine this product with a center channel speaker and any Direct/ReflectingÂ® speaker system. Magnetically shielded speakers allow for speaker placement in close proximity to your TV without interfering with the picture quality. SyncomÂ® computer tested to ensure one of the highest levels of quality and reliability in the audio industry.
Use the following format to find a z-score: z = X - Î¼ / Ï. This formula allows you to calculate a z-score for any data point in your sample. 1  Remember, a z-score is a measure of how many standard deviations a data point is away from the mean.2  In the formula X represents the figure you want to examine.his will start out the calculations for a z-score. 1  For example, in our sample of tree heights we want to find out how many standard deviations 7.5 is from the mean of 7.9. 2  Therefore, you would perform the following: 7.5 - 7.9.
Z-Scores; Empirical Rule. Suppose x is a value, or âscoreâ. We want to compare x to a data set (or population) with mean (or Î¼) and standard deviation s (or Ï). x may or may not be a part of the data set. Define the z-score for x as or. â¢ The z-score tells us how many standard deviations x is from the. mean. â¢ The further z is from zero, the more âatypicalâ x is, relative to. the given data set. In fact, the âempirical ruleâ states that for.