21. Selwyn (2007) conducted a study of gender-related perceptions of information and communication technologies (such as video game systems, DVD players, and cell phones). The researcher asked 406 college students in Wales to rate 8 technologies in terms of their level of masculinity or femininity. The students rated each technology using a 7-point response scale, from –3 f or very feminine to

+ 3 for very masculine, with a midpoint of 0 for neither masculine or feminine.
Table 9 (reproduced from Selwyn’s article) shows the mean, standard deviation, and variance of the students’ ratings of each technology. Explain the results to a person who has never had a course in statistics. (Be sure to explain some specific numbers, as well as the general principle of the mean, standard deviation, and variance.)