STAT 1350 Lecture Notes - Lecture 12: Normal Distribution, Standard Deviation, Standard Score

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Resting pulse rate in healthy adults has been found to be normally distributed, with a mean of 73 beats per minute and a standard deviation of 12 beats per minute. _____% of pulse rates are greater than 109 0. 15% _____% of pulse rates are less than 49 2. 5% _____% of pulse rates are between 73 and 97 47. 5% 100% of the data in a normal distribution falls with 3 standard deviation of the mean false (99. 7%) The normal distribution is symmetric true. The normal distribution is centered at the 50th percentile true. If the median of a normal distribution is converted to a z-score, that z-score would be 1. A z-score is not the same thing as a standard deviation true. A standard deviation can never be negative. A z-score tells us how many standard deviation a data value falls away from the mean.

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