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Questions Posted by bucklers25

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Bounty Status Category Sub-Category Question Due
$3.00 Closed, closed Mathematics Statistics math problem
find the mean, variance and standard deviation of the binomial distribution with the given values of n and p.n=70 p=o.2 the mean is _ round to the nearest 10th place the variance is _ 10th place the...
Aug. 05, 2009
$8.00 Closed, closed Mathematics Statistics math problems
Multiple choice questions each have four possible answers (a,b,c,d), one of which is correct. assume that you guess the answers to three such questions. a. use the multiplicaation rule to find P(wwc),...
Aug. 05, 2009
$20.00 Closed, closed Mathematics Statistics math problems
2. 24% of students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards because of the rewards...
Aug. 05, 2009
$5.00 Closed, closed Mathematics Statistics math problems
a. From National Weather Service records, the annual snowfall in the TopKick Mountains has a mean of 92 inches and a standard deviation of 12 inches. If the snowfall from 25 randomly selected years...
Aug. 06, 2009
$5.00 Closed, closed Mathematics Statistics math problems
4. Answer the questions about the specified normal distribution. (References: example 4 and 5 page 264 - 265, end of section exercises 39 – 45 pages 267 - 268) a. The lifetime of ZZZ batteries are...
Aug. 06, 2009
$6.00 Closed, closed Mathematics Statistics math problems
2. The diameters of a wooden dowel produced by a new machine are normally distributed with a mean of 0.55 inches and a standard deviation of 0.01 inches. What percent of the dowels will have a...
Aug. 06, 2009
$4.00 Closed, closed Mathematics Statistics math problems
1. Use the Standard Normal Distribution table to find the indicated area under the standard normal curve. a. Between z = 0 and z = 1.24 b. To the left of z = 1.68 c. Between z = -1.52 and z = -0.64...
Aug. 06, 2009
$4.00 Closed, closed Mathematics Statistics math problems
1. Use the Standard Normal Distribution table to find the indicated area under the standard normal curve. (References: example 3 - 6 pages 244 - 247, end of section exercises 21 – 40 page 249) (...
Aug. 06, 2009
$5.00 Closed, closed Mathematics Statistics please help!!!
The standard deviation are given below. Find the required robability and determine whether the given same mean would be considered unusual. For a sample of n=75, find the probability of a sample mean...
Aug. 03, 2009
$10.00 Closed, closed Mathematics Statistics Math problems
Please help me!!!!!!!!!!! I am in the middle of a problem. It is due in 4 hours. CO emissions for a certain kind of car vary with mean m=2.2 g/mi and standard deviation o=0.7 g/mi. A company has 90...
Aug. 03, 2009