正規分布

統計学入門

George Boorman

Curriculum Manager, DataCamp

正規分布とは？

Normal distribution with area underneath curve shaded.png

Normal distribution with arrows pointing to tails on either side.png

Normal distribution with mean 20 and sd three.png

$$ \text{平均} = 20 $$

$$ \text{標準偏差} = 3 $$

Normal distribution with mean 0 and sd 1.png

$$ \text{平均} = 0 $$

$$ \text{標準偏差} = 1 $$

Normal distribution with area between plus minus one standard deviation labeled as 68 percent.png

Normal distribution with area between plus minus two standard deviation labeled as 95 percent.png

Normal distribution with area between plus minus three standard deviation labeled as 99.7 percent.png

Standard normal distribution.png

¹ データソース: https://data.gov.uk/dataset/ec1efd76-d6ad-4594-9b4d-944aa4170e63/gcse-english-and-maths-results-by-ethnicity

normal_distribution_with_different_peaks_and_tail_length.png

統計学入門