The Bem Sex Role Inventory (BSRI) provides independent assessments of masculinity and femininity in terms of the respondent's self-reported possession of socially desirable, stereotypically masculine and feminine personality characteristics.

Alison Konrad and Claudia Harris sought to compare northern U. S. and southern U. S. men on their judgments of the desirability of 40 masculine, feminine, or androgynous traits.

Suppose that the following are the scores from a hypothetical sample of African American men for the attribute Gentle.

5 7 6 5 7

Required:
Calculate the mean, degrees of freedom, variance, and standard deviation for this sample.