We use histograms for data measured on a continuous scale and bar charts for data measured on a categorical scale. a) True b) False
We use histograms for data measured on a continuous scale and bar charts for data measured...
Bar charts are a lot like histograms, except Question 19 options: the bars displayed in the graph do not touch the bar chart summarizes quantitative data the bar chart summarizes continuous data all of the above
For each of the following descriptive methods, state whether it may be applied to categorical data, continuous numerical data, or both. (a) Bar charts (b) Histograms (c) Summary statistics (d) Cross-tabulations (e) Correlation analysis (f) Scatter plots (two- or three-dimensional) (g) Binning
Your data include a measure of air pollution that is measured on a continuous scale, as well as another variable that measures the location of that air pollution in five counties. Which test statistic should you use to examine whether mean pollution levels vary across counties? Why should you use this test statistic?
Question 5 Paired occurrences are displayed in frequency distributions. a. True b. False Question 6 This statistical feature distinguishes histograms from bar charts a. They have more than 1 category (bar) b. There is no ‘0’ value c. Data must be continuous d. Outliers are excluded This graphical display of data is best suited for longitudinal data (to show changes over time) a. Bar chart b. Histogram c. Scatterplot d. Line chart Question 8 Dependent variables are usually placed on...
What does this bar chart show that is not so evident in the pie
charts?
A) This bar chart shows the frequencies of the categorical
variable.
B) this bar chart shows the relative frequencies of the categorical
variable.
C) This bar chart shows the median of the data.
D) this bar chart shows the proportions of the categorical
variable.
The table to the right summarizes the number of game consoles sold in three areas as of the end of 2010....
Variables are quality characteristics that are always nominal types of data measured on a continuous scale counted using whole numbers usually independent variables
QUESTION 1 A type of data measured in unrestricted measurable quantities is: A. Discrete B. Continuous C. Ordinal D. Nominal 2 points QUESTION 2 One way to control for age as a confounder is to use age-adjusted rates. True False 2 points QUESTION 3 Useful for measuring diseases that are difficult to pinpoint when an individual becomes a case, and for describing the magnitude of a public health problem is the: A. Mortality rate B. Person-time rate C....
1. TRUE OR FALSE: If the Y-axis on a histogram or bar chart is changed from frequency to relative frequency, the shape of the graph will remain unchanged. 2. TRUE OR FALSE: The X-axis for a histogram displays numerical data. 3. TRUE OR FALSE: Bar charts and pie graphs are useful when presenting categorical data. 4. TRUE OR FALSE: The box in a box plot represents the standard deviation. 5. TRUE OR FALSE: The actual raw data can be reconstructed...
Work-energy bar charts for a person going downstairs and upstairs are shown in the figure below. The bar charts show the average energy conversion across several steps. The system is the person, Earth, and the stairs. (a) Describe the differences in the bar charts. How do these differences explain why we are less tired going downstairs? (b) How do you explain that when we walk upstairs lLVthl < IAUchl, but when we walk downstairs AUhl>JAUchl? Going downstairs 0 Going upstairs...
True or false? A histogram and a relative frequency histogram, constructed from the same data, always have the same basic shape. Choose the correct answer below. O A. False. The two histograms can have very different shapes depending on the distribution of the data. O C. False. The histograms use different scales on the y-axis, resulting in completely different shapes. O B. True. They will both have the same shape and the same vertical scale. They will dffer only in...