Avian influenza can infect both game and wild birds
Indicate whether the statement is true or false
T
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German immigrants to the United States
A. quickly became a powerful political force. B. came to escape economic hardships and autocratic government. C. were as poor as the Irish. D. contributed little to American life. E. were almost all Roman Catholics.
To round a number, look at the place immediately to the right of the place to be rounded. If the digit is less than or equal to 4, round the digit in the rounding place up to the next higher digit.
Answer the following statement true (T) or false (F)
Define a relay.
What will be an ideal response?
The article “Withdrawal Strength of Threaded Nails” describes an experiment comparing the ultimate withdrawal strengths (in N/mm) for several types of nails. For an annularly threaded nail with shank diameter 3.76 mm driven into spruce-pine-fir lumber, the ultimate withdrawal strength was modeled as lognormal with µ = 3.82 and ? = 0.219. For a helically threaded nail under the same conditions, the strength was modeled as lognormal with µ = 3.47 and ? = 0.272.
a. What is the mean withdrawal strength for annularly threaded nails? b. What is the mean withdrawal strength for helically threaded nails? c. For which type of nail is it more probable that the withdrawal strength will be greater than 50 N/mm? d. What is the probability that a helically threaded nail will have a greater withdrawal strength than the median for annularly threaded nails? e. An experiment is performed in which withdrawal strengths are measured for several nails of both types. One nail is recorded as having a withdrawal strength of 20 N/mm, but its type is not given. Do you think it was an annularly threaded nail or a helically threaded nail? Why? How sure are you?