Please explain the features of the normal distribution and include a labeled figure.
What will be an ideal response?
For the figure see Figure 11-4. What we see there is a “bell-shaped” distribution with the following features: The bulk of observations lie in the center, where there is a single peak. More specifically, in a normal distribution, half (50%) of the observations lie above the mean and half lie below it. The mean, median, and mode have the same numerical values. Fewer and fewer observations fall in the tails of the distribution. The spread of the distribution is symmetric: one side is the mirror image of the other. If data have such a distribution, the frequency or proportion of cases lying between any two values of the variable can be described by “distances” between the mean and standard deviations. Approximately 68% of the observations are between plus and minus one standard deviation of the mean. Approximately 95% of the cases will fall plus and minus two standard deviations of the mean. Almost all of the data will be plus and minus three standard deviations of the mean.
You might also like to view...
Which of the following electoral rules would encourage
less-privileged people to vote in greater numbers? a. requiring voters to register to vote at least one month prior to the election b. scheduling Election Day on a weekday c. compulsory voting provisions that make voting a requirement for everyone d. making elections nonpartisan so voters do not know the party affiliation of candidates
Completing a civics class in high school has been shown to be important to political socialization in that:
a. it increases support for Democrats b. it decreases the likelihood of a person protesting the actions of their government c. it makes people more evenhanded and moderate in their political attitudes d. it increases support for democracy as a system of government