Measures of Central Tendency
Measures of Variation
Analysis
The National Cancer Institute conducts research annually on cancer patients and categorizes the data based on different patient characteristics. The data collected from 2000 to 2015 showed the existence of a disparity in the prevalence of lung and bronchus cancer among different ethnic groups as evidenced by different means and ranges (National Cancer Institute, 2018). The findings showed that the disease was highly prevalent among Blacks (70.07).
This was followed by Alaska Natives (43.28), Asians/Pacific Islanders (38.51), and Hispanics (31.49). It was less common among Hispanics as they have the least mean of 31.49. Furthermore, it is essential to note that the median lied closely to the mean in all ethnicities, therefore, illustrating that outliers minimally skew the data. Consequentially, this suggests that data was normally distributed. The variance and standard deviations in different ethnicities were relatively low when analyzed in correlation to their respective means. This insinuates that the values lie close to the mean and each other.
Reference
National Cancer Institute. (2018). Lung and bronchus cancer. Web.