Solve the problem.The amount of Jen's monthly phone bill is normally distributed with a mean of $69 and a standard deviation of 
. Within what range are 68% of her phone bills?
A. Between $57 and $81
B. Between $45 and $69
C. Between $69 and $81
D. Between $45 and 93
Answer: A
Mathematics
You might also like to view...
Provide an appropriate response.Q = Q0 × 2t/Tdouble is the equation for ________.
A. half-life B. doubling time C. growth or decay D. None of the above.
Mathematics
Factor the difference of cubes.8a3 - 27b3
A. (2a + 3b)(4a2 - 6ab + 9b2) B. (2a - 3b)(4a2 + 9b2) C. (8a - 3b)(a2 + 6ab + 9b2) D. (2a - 3b)(4a2 + 6ab + 9b2)
Mathematics
Solve the equation.e4x = 6
A. 
B. {4 ln 6}
C. 
D. 
Mathematics
Express as a sum of logarithms.log4 (9 ? 3)
A. log2 9 + log2 3 B. log 9 + log 3 + log 4 C. log (9 + 3 + 4) D. log4 9 + log4 3
Mathematics