The observed level of significance if a value of 9 is observed.
The probability density function of X is f (x) = 81 / x4 over [3, ?) . Compute the following quantity.
0.037037
Mathematics
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Solve the problem.The cross-sectional area of a cylinder is given by A = ?D2/4, where D is the cylinder diameter. Find the tolerance range of D such that 
< 0.01 as long as Dmin < D < Dmax.
A. Dmin = 3.567, Dmax = 3.570 B. Dmin = 3.558, Dmax = 3.570 C. Dmin = 3.567, Dmax = 3.578 D. Dmin = 3.558, Dmax = 3.578
Mathematics
Perform the indicated operation. Write the result in scientific notation.
A. 40 × 1019 B. 40 × 1018 C. 9 × 1018 D. 9 × 1019
Mathematics
Use the properties of equality to solve the equation.
= - 
x
A. - 
B. - 
C. 
D. - 1
Mathematics
Identify the fraction as a proper fraction or an improper fraction.
A. Proper fraction B. Improper fraction
Mathematics