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Descriptive Statistics
Page 6
Questions (1,529)
Find the value of Z that is smaller than 90% of all values of Z.
3 answers
asked by
ali awan
1,029 views
A tech company develops a navigation app for smartphones that can compute the usual distance it takes to get from one location
6 answers
asked by
jessica
781 views
1. What are the minimum, first quartile, median, third quartile, and maximum of the data set?
18, 20, 11, 10, 8, 6, 12, 4 A:
4 answers
asked by
Geno
2,300 views
From a sample with n equals=24, the mean number of televisions per household is 3 with a standard deviation of 1 television.
4 answers
asked by
Addison
3,319 views
26. Flight Data: Find the range, variance, and standard deviation. Express answers using appropriate units, such as "minutes."
Re
4 answers
asked by
Alexis
2,009 views
Help me solve this please. One of the few on my hw list that I had no idea how to solve
A medical researcher is interested in the
3 answers
asked by
Somi
408 views
1. A distribution has a standard deviation of � � 12.
Find the z-score for each of the following locations in the distribution.
4 answers
asked by
Nickie
855 views
A government report looked at the amount borrowed for college by students who graduated in 2000 and had taken out student loans.
3 answers
asked by
karen
1,357 views
A recent survey found that 72% of all adults over 50 wear glasses for driving. In a random sample of 100 adults over 50, what is
9 answers
asked by
Sheila
2,785 views
Suppose a tire manufacturer wants to set a mileage guarantee on its new XB 70 tire. Life tests revealed that the mean mileage is
4 answers
asked by
Brea
3,165 views
A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is approximately
3 answers
asked by
Brady
807 views
For a population with µ = 70 and ó = 20, find the z-score that corresponds to each of the following X-values
3 answers
asked by
Anonymous
575 views
. In a sample of n = 6, five individuals all have scores of X = 10 and the sixth person has a score of X = 16. What is the mean
3 answers
asked by
toonie
1,795 views
Determine: minimum, maximum, median, 1st quartile, and 3rd quartile
10,12,7,9,4,15,20,21 Minimum: _______ Maximum: _______
4 answers
asked by
fornothing
468 views
what is the standard deviation of the following...
2.82 3.49 3.28 3.25 3.26 2.87 3.16 3.4 2.84 3.72 3.22 3.44 3.65 3.02 3.03 3.8
2 answers
asked by
Michelle
925 views
3) A company that manufactures oil seals found the population mean to be 49.15 mm (1.935 in.), the population standard deviation
3 answers
asked by
Cr
1,067 views
Cookies are made in a factory with an average mass of 22 grams and a standard deviation of 4 grams. some cookies are packed in a
1 answer
asked by
Anna
441 views
You are trying to be a YouTube star and are tracking the number of views on your videos. Below
are the number of views on your
4 answers
asked by
𝓜𝓘𝓐
451 views
Let the random variable X represent the number of people living in a household in a certain town. The standard deviation of X
is
4 answers
asked by
Anonymous
4,153 views
The following table gives the percentage of on-time arrivals in U.S airports from 2004 through 2013.
Year 2004 2005 2006 2007
3 answers
asked by
emily
708 views
a sample consists of the following n =6 scores: 2, 7, 4, 6, 4, and 7 compute the mean and standard deviation for the sample
5 answers
asked by
Bridget
2,940 views
the test marks for 29 students studying STSA 1624 produced a mean of 72,8% and a variance of 275,56%. If the distribution of the
3 answers
asked anonymously
44 views
The test marks for 29 students studying STSA 1624 produced a mean of 72,8% and a variance of 275,56%. If the distribution of the
3 answers
asked anonymously
46 views
Assume heights and weights are normally distributed with the given means and standard deviations from the table below.
Strata
3 answers
asked by
Sara
976 views
From the following list of number of discharges each day in September, compute the mean, median, mode, and range. Round the mean
3 answers
asked by
John
784 views
Fill in the blanks with the appropriate raw scores, z-scores, T-scores, and percentile ranks. NOTE: the Mean = 50, SD = 5.
______
4 answers
asked by
Judi
1,413 views
Whats the difference between creating a z score from a single score and creating one fron a sample mean?
3 answers
asked by
Brittany
605 views
Here are some statistics using GSS 2008 data:
RACE OF RESPONDENT n 2023 Mean 1.32 Median 1.00 Mode 1.00 Standard deviation 0.631
4 answers
asked by
stewie
1,462 views
make up a set of at least twelve numbers that has the following landmarks. minimum:50 median:54 maximum:57 mode:56
5 answers
asked by
jimmy
1,321 views
1) A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is
3 answers
asked by
Mich
1,111 views
For an ungrouped data set with an odd number of observations that have been sorted or arrayed from smallest to largest values,
3 answers
asked by
Anonymous
1,131 views
A test consists of 90 mulitiple choice questions, each with five possible answers, only one of which is correct. Find the mean
3 answers
asked by
chalulu
1,923 views
if the mean of a set of data is 23.00, and 12.60 has a z-score of -1.30, then what is the standard deviation?
4 answers
asked by
Anonymous
1,097 views
The same car at three different dealerships had a median price of $14,833.02. The mean price was
$14,544.43 and the range of
3 answers
asked by
thomas
756 views
population mean=42.6
standard deviation=12 n=16 M=34.4. Is this mean a reasonable outcome for a sample of n=16, or is this sample
4 answers
asked by
Lindy
615 views
In a population of exam scores, a score of x=88 corresponds to z=+2.00 and a score of x=79 corresponds to z=-1.00. Find the mean
3 answers
asked by
Tegan
1,214 views
Find the missing numbers and landmarks for the set of numbers:
48, 50, 51, 51, 57, 59, 60, 63, 69, ______ , 76, ______ . A Range:
5 answers
asked by
Trudy & Mark
1,142 views
what is the range of this data set
2 answers
asked by
perry
51 views
A recent survey asks 105 students, How many hours do you spend on the computer in a typical day? Of the 105 respondents, 1 said
5 answers
asked by
1/13
394 views
A normal distribution has mean of 7 and standard deviation of 4. What is the raw score of X corresponding to z= -1.25?
3 answers
asked by
Joylyn nebres
778 views
You find out that the average 10th grade math score, for Section 6 of the local high school, is 87 for the 25 students in the
3 answers
asked by
doris.ThompsonFofanah
1,152 views
The average family spends $78 at the grocery store each week with a standard deviation of $25
How much money per week would a
3 answers
asked by
jax
425 views
A random sample M1, M2,M3...M8 is taken from a population with unknown mean x. For each of the following, state wether or not it
4 answers
asked by
Yo
339 views
The weights and heights of six mathematics students are given in the following table:
Weight (in pounds) Height (in centimeters)
3 answers
asked by
Anonymous
1,529 views
Heights of husbands and wives. The mean height of American women in their early twenties is about 64.5 inches and the standard
1 answer
asked by
Anonymous
1,175 views
In December 2010, the average price of regular unleaded gasoline excluding taxes in the United States was $3.06 per gallon,
4 answers
asked by
Keonn'a
1,399 views
The probability is 0.7 that a person shopping at a certain store will spend less than $20. For groups of size 13, find the mean
3 answers
asked by
Johnny
920 views
To study the efficiency of its new price-scanning equipment, a local supermarket monitored the amount of time its customers had
3 answers
asked by
Alyssa
1,664 views
You measure 64 children , obtaining a X of 57.28 . The mean is 56 and sd is 8 Slug says that bc this X is so close to the mean
3 answers
asked by
pam
678 views
The hydrocarbon emissions at idling speed in parts of million (ppm) for automobiles of 1980 and 1990 model years are given for
3 answers
asked by
Anna
1,138 views
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