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Identify and state the historical significance of Hinton R. Helper.
What will be an ideal response?
Author of The Impending Crisis of the South, Helper hated both slavery and black people. He argued that non-slave owning whites were the true victims of the institution.
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There are usually _____ animals in a class to be judged
a. two c. six b. four d. eight
Abraham Lincoln stated that People are about as happy as they make up their minds to be
This is a belief of someone who
a. is dogmatic. b. has an external locus of control. c. has an internal locus of control. d. is very open-minded. e. is experiencing cognitive dissonance.
The tight bond between the refrigerant tube and the fins on tube-and-fin coils is made by:
A) Glueing the fins to the tubing. B) Soldering the fins to the tubing. C) Machining the fins and tubing out of a single piece of solid metal. D) Expanding the tubing into the fins.
The lifetime of a lightbulb in a certain application is normally distributed with mean ยต = 1400 hours and standard deviation ? = 200 hours.
a. What is the probability that a lightbulb will last more than 1800 hours? b. Find the 10th percentile of the lifetimes. c. A particular lightbulb lasts 1645 hours. What percentile is its lifetime on? d. What is the probability that the lifetime of a lightbulb is between 1350 and 1550 hours? e. Eight lightbulbs are chosen at random. What is the probability that exactly two of them have lifetimes between 1350 and 1550 hours?