In a standard normal distribution, what is the z-score that corresponds to the 50th percentile?

According to the empirical rule, what percentage of data falls within one standard deviation of the mean in a normal distribution?

In a normal distribution, what is the probability of a z-score being less than 1?

If a data point in a standard normal distribution has a z-score of -2, what does this indicate about the data point?

What z-score corresponds to the top 2.5% of a standard normal distribution?

What is the probability of a z-score falling between -1 and 1 in a standard normal distribution?

What percentage of data lies beyond two standard deviations from the mean in a normal distribution according to the empirical rule?

In a standard normal distribution, what is the z-score for a data point that has 30% of the data below it?

What is the z-score if a data point is exactly one standard deviation above the mean in a standard normal distribution?

What percentage of data lies within three standard deviations from the mean in a normal distribution according to the empirical rule?