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Statistical Figures

Statistical figures are frequently used in statistics to present data in an illustrative format, which clearly communicates the results in an interpretable manner, in which patterns can be emphasized. Often, figures can focus on particular aspects of a data set which are important, but hard to notice when only analyzing the raw data in basic numerical form. Therefore, understanding how to construct different graphical figures is imperative to being successful in expressing statistical data effectively.

There is a multitude of different statistical figures which are taught in statistics because depending on the nature of the data or hypothesis being tested, different figures are more appropriate than others. Figures range from being fairly basic such as bar charts and scatter plots, to more complex such as box plots and pareto charts, which require several calculations to be computed so that the graph can be completed. Other graphics, such as histograms or control charts, are most often used in particular cases. A histogram is utilized to represent a frequency distribution and control charts are commonly utilized when graphing manufacturing processes.

Furthermore, when presenting statistical data and results to the general public, for example in a journal publication, the use of statistical graphics is particularly powerful. It is more likely that statistical figures will be able to get the take home message across, in comparison to the original raw data tables. The application of statistical figures extends well beyond the classroom and evidently, is integral to communication in the discipline of statistics.

Categories within Statistical Figures

Bar Chart

Postings: 3

A bar chart is a statistical diagram which compares the numerical values for different categories through the use of either horizontal or vertical bars.

Pie Chart

Postings: 14

A pie chart is used to display categorical data as the area of divided sectors in a circular figure, representing each category as a proportion of the whole.

Pareto Chart

Postings: 11

A pareto chart is a special type of bar graph, which incorporates the use of a line graph to represent the cumulative total of all the units being measured.

Box Plot

Postings: 28

A box plot provides an illustrative representation of the differences between groups by graphing the numerical data for each group using quartiles.

Control Chart

Postings: 68

A control chart is used to measure the statistical control associated with manufacturing processes and thus, plots the lower and upper control limits to measure deviations from the controlled state.


Postings: 68

A histogram is used in statistics to represent visually a frequency distribution for different category boundaries, through the construction and juxtaposition of rectangular bars.

Q-Q Plot

Postings: 0

A quantile-quantile plot is used when considering populations with a common distribution and is used to analyze two probability distributions against each other.

Scatter Plot

Postings: 42

A scatter plot is utilized to depict the relationship between two variables and can analyze whether a cause-and-effect relationship exists.


Postings: 28

A stemplot also referred to as a stem-and-leaf display, functions to provide in graphical form the shape and spread associated with a set of quantitative data.

Business Statistics of Age and Health Correlations

1. If you could stop time and live forever in good health, what age would you pick? Answers to this question were reported in a USA Today Snapshot. The average ideal age for each age group is listed in the following table; the average ideal age for all adults was found to be 41. Interestingly, those younger than 30 years want to

Ratio rate and analyzing difference between probability

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Control Charts

Demonstrate your understanding of Control Charts as related to Apple Inc. How can control charts help Apple? Which chart would they use, R Chart, C Chart, X-bar Chart or other charts?

Making an XBar Control Chart with Excel

CONTROL CHARTS Assignment Overview You have taken data from a production process in order to develop an Xbar control chart. You have 25 samples of data with 5 parts measured in each sample to get the Xbar and R (Range). Use this data shown in the table. The Case 5 Excel file (same file in Background) contains the data: Sampl

Three methods of statistical inference

Describe each of the following methods of statistical inference in detail (Please try to use layman's terms). 1) Cox proportional-hazards model 2) Pearson correlation methods 3) Kruskal- Wallis test Explain how each method could be used in nursing or nursing research. Cite any sources used, and please, no Wikipedia.

Control Charts: Plotting and Calculating

Can you please explain what I need to do to complete this? I do not understand how to plot the figures within the spreadsheet or calculate them. Sample 1 2 3 4 5 Xbar R 1 1.55 1.58 1.64 1.67 1.50 1.588 0.17 2 1.52 1.62 1.71 1.74 1.60 3 1.47

Estimating the Cost of Optical Sensors Based on the Resolution of the Sensor

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Stats and Financial Analysis

Need to understand these statistics questions. The question involve scatter diagrams, correlation coefficients, ANOVA tables, mean absolute deviation, revenue and cost functions, maximizing profits, and payoff tables.

The solutions gives detailed discussion on some measurements of descriptive statistics. The topic includes DR, FFQ, quantiles and concordance. The conecpts, graphs and tables are put together for better understanding.

Problem 2.28 is what needs solved. 2.27 is provided for reference because the problem refers to it. Nutrition The food-frequency questionnaire (FFQ) is an instrument often used in dietary epidemiology to assess consumption of specific foods. A person is asked to write down the number of servings per day typically eaten

R- and x-Bar Charts

Please see the attached document for proper formatting. 1. Thermostats are subjected to rigorous testing before they are shipped to air conditioning technicians around the world. Results from the last five samples are shown in the table. Draw and R Chart and an x-bar chart. Based on the charts, is the process under control?


See attached for table. 1. The data in the following table (see attached) is the number of nonconformities (defects) per 1,000 meters in 22 samples of telephone cable found by the Bell source inspector at a cable manufacturing facility. (a) Create the appropriate control chart for these data. (b) From the control char

Christian Pie Chart

Review the Christian year pie chart and write a summary in which you (a) describe the significance of the holy days on the chart. and (b) identify any special rituals, symbols, or activities associated with the holy days.

Analyzing Data

The data set for our course is a sample of a survey conducted on the population of the American Inmate Union (AIU). It is available via the attachment: DataSet with DataSet Key, which contains the following nine sections of data that will be used throughout our course: Gender Age Type of Offense Prison Facility Length of

A local children's boutique specializes in formal wear for young girls

A local children's boutique specializes in formal wear for young girls. It has recently hired a new seamstress. To assure the dresses have standard sizes, twenty samples of each 12 dresses that were labeled 3T were sampled. The average length from shoulder to hemline measured 21 inches with a range of 0.5 inches. A sample has ju

Children's Boutique Control Chart

A local children's boutique specializes in formal wear for young girls. It has recently hired a new seamstress. To assure the dresses have standard sizes, twenty samples of each 12 dresses that were labeled 3T were sampled. The average length from shoulder to hemline measured 21 inches with a range of 0.5 inches. A sample has ju

Statistical Process Control Assignment

I. (S6.10) A process that is considered to be in control measures an ingreidnet in ounces. Below are the last 10 samples (each of size n =5) taken. (Sample numbers in the columns and individual observation results below) 1 2 3 4 5 6 7 8 9 10 10 9 13 10 12 10 10 13 8 10 9 9 9 10 10 10 11 10 8 12 10 11 10 11 9 8 10 8 12 9 9

What is the sample size?

Below are the X-bar and R values for five samples. If the lower control limit for the X-bar chart is 8.34, what is the sample size? See attachment for values.

X-bar and R chart

Please read the following situation and provide a solution. Please post the solution in a Microsoft Word format. A Starbucks manager decides to study waiting times of customers for service at the lunch time rush hour 1100-1200. He observes three customers to measure the time the customer enters the line to the time he or s

Excel Dashboard and Profitability Analysis

Please help with the following problem. I need a profitability analysis for the customers (each TAB is considered ONE customer) in the attached Excel file. I need it split up by each "facility #" customer and then I need a roll-up to include ALL facilities for each customer so we can see big picture how the customer is

Control Charts and Nonconforming Proportions

1)Np - Chart A receiving inspection station regularly samples 125 incoming washers to determine whether the inner diameter conforms to specifications. The number of nonconforming washers detected in the last 10 lots is shown below. Develop an np-chart to document the findings. Average, UCL, LCL Trends? Runs? Out of Control? Lo

Control Charts.

You have taken data from a production process in order to develop an Xbar control chart. You have 25 samples of data with 5 parts measured in each sample to get the Xbar. Use this data shown in the table. Sample Xbar 1 2.12 2 2.22 3 1.98 4 2.24 5 1.97 6 1.99 7 2.1

The Importance of Histrograms

Why are histograms useful? What are some of the difficulties in creating histograms? Give some examples where a histogram is useful. Here is some back ground info on a histogram: A Histogram shows the frequencies, absolute or relative, that a specific variable takes on certain values. For example, if you rolled a die, you

Statistics - Probability.

The owner of a restaurant serving Continental-style entrees has the business objective of learning more about patterns of patron demand for the Friday to Sunday weekend time period. Data were collected on 630 customers on the type of course ordered and are listed in the table below. Type of Entry Number Served Beef 187 Chi

Project management tools are emphasized.

Search the Web for project planning tools and describe at least 2. Download a demo or two, and build a project so you can see the different PM charts (Gantt, CPM, Pert, etc.). Comment on the ease in which you were able to build each of the charts. Which tool would you recommend to your classmates, if any, and why?