According to the empirical rule, z-scores, and supposing a normal distribution, a number with a z-score of 0 has an estimated percentile rank of 50.
<h3>Define the term empirical rule in normal distribution?</h3>
A statistical principle known as the empirical rule, also known as the three rule or 68-95-99.7 rule, holds that with a normal distribution, mostly all observed data will lie around three standard deviations (signified by σ ) of the mean or average (signified by µ ).
- In accordance with the Empirical Rule, 99.7% of data that are found to have a normal distribution fall around 3 standard deviations from the mean.
- According to this formula, 68% of the data are within one standard deviation of the mean, 95% are within two deviations, and 99.7% are within three standard deviations.
Thus, as per the empirical rule, z-scores, and supposing a normal distribution, a number with a z-score of 0 has an estimated percentile rank of 50.
To know more about the empirical rule, here
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D>0<10 should be the answer
the answer to your question is -67.424
I am torn between B and D because increased means add, but I am going to go with B 1 - 3n. I choose B because in the D option it decreases not increases.
So the answer is B.) 1 - 3n
Hope this helps! - Alyssa
