The mean for the standard normal distribution is zero, and the standard deviation is one. z1.65 Fig-1 Fig-2 Fig-3 To obtain the value for a given percentage, you have to refer to the Area Under Normal Distribution Table Fig-3 The area under the normal curve represents total probability. For example, if the mean of a normal distribution is five and the standard deviation is two, the value 11 is three standard deviations above (or to the right of) the mean. Table entry for z is the area under the standard normal curve to the left of z. Now that we will Eric’s Z score which we know will an positive 0.56 both wee knowledge which corresponding table to pick for it, we will make use of the positive Z-table (Table 1.2) to predict how good alternatively bad Eric performed compared to yours batches partner.
A z-score is measured in units of the standard deviation. z-score probability table: a table that associates z-scores to.
The standard normal distribution is a normal distribution of standardized values called z-scores. z-score: a measure of how many standard deviations there are between a data value and the mean.
