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PSYC1111-Measuring Mind and Behaviour - T3 2025
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The scores on the math exam have a mean of 95 and a standard deviation of 0. Which of the following must be true:
What does it mean if a histogram shows a peak on the left side and trails off to the right?
The seminar rooms in the library are identified by letters (A, B, C, and so on). A professor records the number of classes held in each room during the fall semester. If these values are presented in a frequency distribution graph, what kind of graph would be appropriate?
In a histogram, what does the area of each bar represent?
Distributions A and B have the same mean and the same range of scores. The standard deviation of distribution A is 15, and the standard deviation of distribution B is 5. Based on these facts, we can conclude that:
What does the height of each bar in a bar graph represent?
A set of scores is presented in a frequency distribution histogram. If the histogram shows a series of bars that tend to decrease in height from left to right, then what is the shape of the distribution?
If a scatterplot shows a positive trend, what can you predict about two variables?
What type of data is displayed in a scatterplot?
What kind of data is best represented by a histogram?