Friday
December 6, 2013

# Posts by Stuart

Total # Posts: 49

Statistics
In 2020, the average charge of tax preparation was \$95. Assuming a normal distribution and a standard deviation of \$10, use the approximate areas beneath the normal curve, as discussed in this section, to answer the following questions. What proportion of tax preparation fees ...

Statistics
Assume x is normally distributed with mean µ= 15 and standard deviation α= 3-. Use the approximate areas beneath the normal curve, as discussed in this section, to answer the following questions. Find P (X ≥15)- A) 0.50 B) 0.16 C) 0.34 D) 0.84

Statistics
1) Laura McCarthy, the owner of Riverside Bakery, has been approached by insurance underwriters trying to convince her to purchase flood insurance. According to local meterologist, there is a 0.01 probability that the river will flood next year. Riverside's profits for the...

Statistics
Using the information presented calculate the following probabilities: Blood Alcohol Level of Victim A B C Age 0.00% 0.01-0.09% 0.10% D 0-19 142 7 6 155 E 20-39 47 8 41 96 F 40-59 29 8 77 114 G 60 over 47 7 35 89 Total 265 30 159 454 A) P(A or D) B) P(B or F) C) P(C or G) D) P...

Statistics
Using the below information calculate the conditional probability of C given each of the age groups, or P(C/D), P (C/E), etc. Compare these probabilities and speculate as to which age groups seem more likely than others to have been (according to the legal definition at that t...

statistics
The following contingency table of frequencies is based on a five year study of fire fatalities in Maryland. For purposes of clarity, columns and rows are identified by the letters A-C and D-G respectively. Blood Alcohol Level of Victim Age A B C 0.00% 0.01-0.09% ¡&Yacut...

maths
multiply and simplify 2(b + 3) + 3(2b - 1)

Engineering
I need help solving the following simultaneous equations, for the values of Vo and a: 1.4 = Vo e^-32a 4 = Vo e^-6a I've never come across simultaneous equations like this (e is the base of natural logarithms, so perhaps taking logs of both sides might help, but I'm stu...

Genral Science
What C word defines a substance that speeds a chemical reaction without being consumed? http://en.wikipedia.org/wiki/Catalysis

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