What are the 3 characteristics of the normal curve?

Bell shape: Mean, Median, and Mode: Symmetrical.

Bell shape: Standard Deviation: Z - value

The curve: Symmetrical: Bell shape

Define the Z - value.

How many standard deviations the x - value is different from the mean.

How far away the mean is from the percentage value.

68% ± 1σ 95% ± 2σ 99.7% ± 3σ

The added value of the z - score to the mean.

The distance between the selected value, x, and the mean divided by the standard deviation.

Quiz

Emily YENG 5 perguntas

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1What is the Standard Normal Value?
1. Az = (z-μ)/σ
2. B68% ± 1σ
3. Cμ = (a+b)/2
2What are the 3 characteristics of the normal curve?
1. ABell shape: Mean, Median, and Mode: Symmetrical.
2. BBell shape: Standard Deviation: Z - value
3. CThe curve: Symmetrical: Bell shape
3Define the Z - value.
1. AHow many standard deviations the x - value is different from the mean.
2. BThe percentage of the mean.
3. CHow far away the mean is from the percentage value.
4Find the x-value.
If the mean is 1500 and the standard deviation is 300. What is the top 10%?
1. A1884.00
2. B1440.50
3. C1904.00
5What is the Empirical rule?
1. A68% ± 1σ
  95% ± 2σ
  99.7% ± 3σ
2. BThe added value of the z - score to the mean.
3. CThe distance between the selected value, x, and the mean divided by the standard deviation.