Analysis of the Scores of Students in the US - Assignment Example

Based on the above histogram, the most important metrics to study would be the mean and also looking at the parametric tests since, from the histogram, the variables show that they follow a normal distribution:

Bar graph and pie charts of the qualitative variables:
- Bar graph for the gender,
- Pie chart for gender,
- A bar graph for the states,
- A pie chart for the States.

Clearly from the charts presented above it is clear that in terms of gender more male respondents (students) took part in the survey as compared to the female respondents. 57% (N=17) of those who took part were male respondents while the female respondents were 43% (N=13).

In terms of the states, Alabama State had the highest number of respondents while California had the least number of students interviewed in this survey. 30% (N=9) of those who took part in the survey were from Alabama, 27% (N=8) were from Arizona, 20% (N=6) were from California and 23% (N=7) were from the State of Illinois.

Based on the first histogram (transformed z-score on the number of hours), it is clear that the variable is free from the outliers however, in the second histogram (transformed z-score on the score) we can see by visualization that there are some elements of an outlier in the variable.