1,010 Answered Questions for the topic Statistics Question

Statistics Question

06/16/14

A distribution is positively skewed. Which is the most probable order, from largest to smallest, for the three measures of central tendency?
MY WRONG ANSWER: mean, median, mode . CHOICES: mean, median, mode                 mode, median, mean                 mean, mode, median                 median, mean, mode   thank you !
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Statistics Question Probability & Statistics

06/06/14

I have some data on religious affiliation and likelihood to cheat and I am in a debate with a friend about what can be concluded from this information.
Given the following information, what can we conclude.    Religious affiliation in the United States(Rounded)   Evangelical Protestant 26% Catholic                     24% Mainline Protestant... more
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Statistics Question

05/15/14

Finding standard deviation
How do I calculate the standard deviation when given the mean and percent of area that lies to left of a given value?   Specifically mean=10.8 and 15% of area lies to the left of 9.3.  What is the... more
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Statistics Question

05/04/14

i need to find the 10%condition of this:
i need to find the 10%condition of this: 33% of 75 name brand chickens are contaminated and 45% of 75 generic chickens are contaminated, what is the 10% condition?
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Statistics Question Statistics Stats

04/22/14

What is the probability that a random sample of 17 persons will exceed the weight limit of 3,434 pounds?
The weight of people in a small town in Missouri is known to be normally distributed with a mean of 186 pounds and a standard deviation of 29 pounds. On a raft that takes people across the river, a... more
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Statistics Question Statistics Elementary Statistics

04/21/14

Please help with my Statistics Assignment?
1. Compute for the mean, median, and mode of the lengths of mosquitoes' lives in seconds after being sprayed with Insecticide A.   13     14     23     22     16     25     14     25     17    ... more
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Statistics Question Statistics Elementary Statistics

04/21/14

Please help to my Statistics question?
I'm getting confused about this things: 1. My teacher said that Nominal,Ordinal,Interval and Ratio has their own appropriate measures of location. for example: For Nominal the appropriate measures... more
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Statistics Question

04/20/14

Assume s is known. What are the critical values for testing H?: µ=200 against H¹: µ ? 200 with a = 0.04 ?
Assume σ is known. What are the critical values for testing Hο: µ=200 against H¹: µ ≠ 200 with α = 0.04 ?a. ±1.41b.±2.05c.±1.67d.±1.75
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Statistics Question

04/01/14

what is the probability that a randomly slected pregnancy lasts less than 172 days?
The mean being 176 days and the standard deviation being 12
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Statistics Question

03/24/14

1. Find B if P=97 and R=77 7/9%. 2. Find P if R =29% and B=300
These are two different questions.
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Statistics Question

03/24/14

A company purchased 10,000 pairs of men slacks for $19.36 per pair and marked them up $22. 83. What was the selling price of each pair of slacks? Use the formul
There are no additional details
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Statistics Question

03/24/14

A recipe uses 4 cups of flour to 1 1/8 cups of milk. If you have 2 cups, how much milk should you use?
I need to answer with an integer or simplified fraction
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Statistics Question

03/23/14

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90.
the scores are normally distributed,   what proportion of scores fall between 300 and 400?
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Statistics Question

03/23/14

how to construct a histogram and percentage polygon
how do i do this given a set of data in excel
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Statistics Question

03/23/14

how to find the true population mean or population proportion in continuous probability distribution?
create a new worksheet on excel document and create worksheet probability depending on major assignment the population mean for goals scored by FIFA soccer player  
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Statistics Question

03/17/14

College Women/ Mothers Height Question
Are college women are taller on average than their mothers. The results (in inches) were as follows: Pair             1  2   3   4  5Daughter    66 64 64 69 66Mother       66 62 65 66 63a. Define... more
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Statistics Question

03/16/14

when a dime is tossed 3 times eight likely outcomes are possible. let a=event the first toss is heads, b=third toss is tails and c=event the total number is one
compute P(C/A) and are A and C independent events and why?
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Statistics Question

03/16/14

find the number of weaving errors in a 20 by 10 foot rug
Find the number of weaving errors in a 20 by 10foot rug. What is the probability of finding at least 3 errors in the rug???    this is all the information given. The chapter is on discrete random... more
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Statistics Question

03/07/14

Why is it important to learn statistics in the study of Psychology?
Why is it important to learn statistics in the study of Psychology?    
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Statistics Question

02/25/14

How can I find the least-square regression line?
If I was given this data how can I find the least squares regression line:   x = 21   y= 78   sx = 1.5   sy= 0.8   r=0.81
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Statistics Question Standard Deviation

02/22/14

What is the minimum "usual" value equal beats per minute?
A certain group of tests subject had pulse rates with a mean of 77.1 beats per minute and standard deviation of 12.6 beats per minute. Would it be unusual for one of the test subjects to have a... more
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Statistics Question

02/22/14

Find the marginal distribution of age group
Age group 15 to 19 years, 2124 Females and 1876 Males
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Statistics Question

02/19/14

If a stemplot showed the following numbers of pizza pieces eaten by a contestants:
08, 17, 19, 25, 27, 29, 30, 32, 35, 37, 39, 39, 41, 42, 46, 53, 57, 63 What percent of contestants ate more than 50 pieces of pizza?
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Statistics Question

02/19/14

The five number summary for the length of duration (in minutes) of a volcano eruption is 1.7, 2.3, 4.0, 4.4, 5.2.
  What percent of the eruptions last longer than 2.3 minutes?
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Statistics Question

02/19/14

A national achievement test is administered annually to 5th graders.
The test scores are normally distributed with a mean of 100 and a standard deviation of 15.  If Tom's standardized score is 1.23, what was his approximate score on the test?  Round to the whole... more
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