Raymond B.

Mean And Median

05/23/14

A statistics professor has just given a final examination

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Other

05/14/14

confidence interval

part of a student statistic project involved a sample survey which resulted in (0.23, 0.57) as a 95% confidence interval for population proportion. calculate the value of the survey's sample... more

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Statistics

05/07/14

An immigration agent at an airport, on an average, could process 15 entrants in one hour, if he was busy all the time. On an average, an entrant arrives at his station at every 5 minutes. The agent... more

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Trigonometry Functions Angles

05/06/14

find all 6 trigonometric functions of the angle whose terminal side goes through P(-4,6)

sinP= cosP= tanP= cscP= secP= cotP=

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Algebra Help Domain Math Help

05/04/14

F(x) help show work

Let f(x)=e3x (a.) Find the inverse function of f. Show work. (b.) What is the domain of f ? What is the domain of the inverse function?

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Algebra 1

05/03/14

Algebra 1 problems

Please help me with these problems and explain the steps to get to the answer: 1. Hearst Castle if 180 miles from Ventura by road. Two coaches leave Ventura at the same time, both heading for... more

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Chi Square

04/29/14

Chi square test

for each of the following questions state the null and hypothesis sketch the critical region indicating the critical value calculate the test statistic and show where the test statistic falls on... more

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Algebra

04/27/14

How would you graph negative square root of (16-(1/2x))^2 ?

I plugged in values for x, but when I try to plug in y values, I don't get how to do the equation.

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Trigonometry Double Angle Formula Half Angle Formula

04/20/14

Sin 2 u , Cos 2 u , Tan 2 u , Sin u/2 , Cos u/2 , Tan u/2

Given that csc u= 17/15 and 0 < u < pi/2 , use double angle or half angle formulas to find the following

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Math

04/19/14

what system of equations must be solved to determine the break-even point of your company

the break even-pont is (40,14000) and solve the equation algebraically.

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Math Problem

04/13/14

4834 5647 what is the pattern between these numbers

I would like to know the pattern between 4834 and 5647

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Math Statistics

04/09/14

in a poll of 212 prison wardens, 98 said that tattoos are a sign of trouble. Find the sample proportion who think tattoos are a sign of trouble.

in a poll of 212 prison wardens, 98 said that tattoos are a sign of trouble. Find the sample proportion who think tattoos are a sign of trouble. 1. Using the problem above, to test the claim that... more

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Algebra

04/08/14

0.6q+100= -q2/2000-0.7q+1000

need to find equilibrium

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Math Stats

03/30/14

Math Stats Help?

In a Gallop poll of 567 randomly selected adults, 274 said they were underpaid. Construct a 95% confidence interval estimate for the percentage of all adults who said they were underpaid.

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Statistics

03/26/14

Statistics Problem

Based on observed males using public restroom, 85% of adult males wash their hands in public. In a survey of 523 males, 518 reported they wash their hands in public restrooms. Assuming the 85% rate... more

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Math

03/25/14

Statistic Questions?

Coke cans are filled with 12 ounces of soda with a standard deviation of 0.11 oz. Find the probability that in a sample of 49 cans, the mean will be greater than 12.10 ounces (profit waste).

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Math Statistics

03/25/14

Statistic Questions?

1. Coke cans are filled with 12 ounces of soda with a standard deviation of 0.11 oz. Find the probability that in a sample of 49 cans, the mean will be greater than 12.10 ounces (profit... more

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Sampling Distribution

03/24/14

statistics

Let x be a random variable that represents white blood cell count per cubic millimeter of whole blood in a healthy adult. Then mu=7500 and o = 1750. A random sample of n=50 workers from the toxic... more

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Combinatorics

03/05/14

How many ways can you deal a hand o 13 playing cards that contains four spades, seven diamonds and two hearts? Leave your answer in factorial form.

I have to answer this question for an online math course and am a bit confused by it. I know how to calculate the exact number of ways, but am a bit confused by the requirement that it be shown in... more

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Number Sequences

02/20/14

6, 8, 10, 12, up tp 246. how long is the total length of all the rods?

A support rod is 6 feet long and every rod after is 2 feet longer than the previous (6, 8, 10, 12.......246) up to 246. What is the formula to find the total length of all the rod lengths added... more

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