z = -1.644853 (approx).
To determine the percentile of a z-score, you would look up the z-score in a standard normal distribution table. A z-score of 0.62 corresponds to a percentile of approximately 73.8%. This means that 73.8% of the data in a standard normal distribution falls below a z-score of 0.62.
2.326
z = 0.5244, approx.
1
There is insufficient information in the question to answer it. To determine Z score, you need raw score, mean, and standard deviation. Please restate the question.
75th percentile.
To determine the percentile of a z-score, you would look up the z-score in a standard normal distribution table. A z-score of 0.62 corresponds to a percentile of approximately 73.8%. This means that 73.8% of the data in a standard normal distribution falls below a z-score of 0.62.
z = 1.281551
You need to look up z-score tables.
2.326
It is -1.281551
2.82
The top percentile (> 99.86%)
z = 0.5244, approx.
z = 1.28, approx.
1
If the Z-Score corresponds to the standard deviation, then the distribution is "normal", or Gaussian.