Calculate the number of classes if there are 65 observations in a data set.
A) 7
B) 6
C) 5
D) 4
E) 3

Name: Calculate the number of classes if there are 65 observations in a data set. A) 7 B) 6 C) 5 D) 4 E) 3
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Quizplus · Accepted Answer

The number of classes can be calculated using Sturges' formula: k = 1 + 3.322 * log10(n), where n is the number of observations. For 65 observations, k ≈ 1 + 3.322 * log10(65) ≈ 7.

Calculate the Number of Classes If There Are 65 Observations