The terms equilibrium and balance are used to describe a system where the controlled variable is at a state specified by the command signal.
Answer the following statement true (T) or false (F)
True
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The number of users that were logged into an Internet server was monitored every minute, over a period of 100 minutes. Here are the results:
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(a) Group these measurements into 10 equal classes, (81–95, 96–110, etc.) and construct a frequency distribution table for the data. (b) Draw a histogram of the distribution. (c) Find the mean number of users during the sample period. (d) Using the histogram, estimate the probability of 141–165 users being logged in at any given time.
How are pneumatic actuators operated?
A. By hand wheels B. By levers C. By an air signal D. By an electrical motor
What quality tool is used to indicate relationships between two variables or pairs of data?
a. histogram b. scatter plots c. pareto d. SPC chart
The distribution of "visual weight" on either side of a vertical axis is known as
a. harmony c. unity b. balance d. focal point