Find the indicated probability or percentage for the normally distributed variable.The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is the probability that a pregnancy lasts at least 300 days?
A. 0.983
B. 0.018
C. 0.017
D. 0.483
Answer: C
Mathematics
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Factor.x(y + 11) + 14(y +11)
A. 11y(x + 14) B. 14x(y + 11) C. (y + 11)(x + 14) D. (xy + 11x) + (14y + 154)
Mathematics
Write an equivalent fraction for the percent and, if possible, simplify.680%
A. 
B. 
C. 68
D. 
Mathematics
The quantity demanded x (in thousands of pounds) of a certain brand of butter per week is a continuous random variable with probability density function
?
?
What is the expected demand for this brand of butter per week?
?
__________ lb/wk
Fill in the blank(s) with the appropriate word(s).
Mathematics
Rationalize the denominator.
A. 10
B. 
C. 3
D. 3
Mathematics