X is Normal (7.2, 1.3).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable
7.2, 1.691, 1.3
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Solve the problem.On a test, Shoshana got 92% or 115 of the items correct. How many items were on the test?
A. 92 B. 125 C. 80 D. 23
Provide an appropriate response.Subtract 5 from 94.
A. 90 B. 89 C. 99 D. 88
Evaluate the expression according to the replacement value given.3p - r; replace p with 5 and r with 2.
A. 30 B. 9 C. 17 D. 13
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.loga 
A. loga x4 + loga (x + 5)-3 - loga (x - 2)2
B. 4 loga x - 3 loga (x + 5) - 2 loga ( x - 2)
C. 4 loga x + 
loga (x + 5) - 2 loga (x - 2)
D. loga x4 + loga (x + 5)1/3 - loga (x - 2)2