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Descriptive Statistics
Page 5
Questions (1,713)
1. What are the mean,Median,Mode,and range of the data set 16,17,17,17,19,21,23,24?
A. Mean=19.3; Median=17; mode=18 B.
5 answers
asked by
안녕
1,855 views
calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}
3 answers
asked by
Dominick
789 views
The mean number of minutes spent on a treadmill at the local gym is 28 minutes with a standard deviation of 8. If Kurt's z-score
3 answers
asked by
chloe wallace
1,446 views
The median number of magazine appearances made by 7 models is 5. The range of number of magazine appearances by those models is
4 answers
asked by
Sophia
1,341 views
Statistics: Analyze student exam scores
Students were given an exam with 300 multiple choice questions. The distribution of the
2 answers
asked by
ro
809 views
Times for an ambulance to respond to a medical emergency in a certain town are normally distributed with a mean of 450 seconds
4 answers
asked by
Bella
3,462 views
Q1. A population has a mean of µ = 80 with σ = 20.
a. If a single score is randomly selected from this population, how much
4 answers
asked by
Jamie
5,568 views
A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did not
2 answers
asked by
adrenning
623 views
The Stop N’ Go convenience chain recently selected a random sample of 10 customers. The store monitored the number of times
3 answers
asked by
petrit
627 views
use the frequency table to find the mean number of working tv sets in student homes
10 answers
asked by
zriaz4020
1,811 views
Which of the following is true of the data set represented by the box plot?
box plot with point at 16, min at 33, Q1 at 40,
4 answers
asked by
Oscar
5,384 views
exercise: The average number of sick days an employee takes per year is believed to be about 10. Members of a personnel
4 answers
asked by
yao
3,130 views
Rolinda’s first five Spanish test scores are 85, 85, 60, 62, and 59.
a. Find the mean, the median, and the mode of Rolinda’s
1 answer
asked by
TWO
222 views
A girl scout troop sold cookies to raise funds. Each troop member recorded the number of boxes she sold. The number of boxes
4 answers
asked by
Ember Lovet
1,838 views
Studies shown that gasoline use or compact cars sold in the U.S. is normally distributed, with a mean of 25.5 mpg and standard
2 answers
asked by
sarah
525 views
Given the following frequency distribution, find the mean, variance, and standard deviation.
Class Frequency 31-33 18 34-36 25
3 answers
asked by
Jennifer
577 views
I am working with standard deviation and the empirical rule.
The problem has the heights of basketball players (women) and we
4 answers
asked by
lauren
568 views
A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The
5 answers
asked by
Joy Chapman
2,738 views
Find a set of numbers that will satisfy the following conditions:
- the median of a set of 20 numbers is 24. - the range is 42. -
4 answers
asked by
Ariellen
1,917 views
Suppose the final exam scores in a large class is symmetric mound shaped with a mean of 70 points and standard deviation of 10
5 answers
asked by
Anonymous
2,720 views
A sample of n = 5 scores has a mean of M = 12. What is ‡” x for this sample?
4 answers
asked by
Dottie
3,235 views
set of data is normally distributed with a mean of 200 and standard deviation of 50.
· What would be the standard score for a
5 answers
asked by
Laynette
3,606 views
Which is a correct description of the data in the table?
Time Worked (hours) 8 11 10 5 12 8 Earnings ($) 72 99 90 45 108 72 A.
5 answers
asked by
Luffy
1,072 views
In the Dominican Republic in August, the distribution of daily high temperature is approximately normal with mean 86 degrees
4 answers
asked by
Madi
8,248 views
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is
4 answers
asked by
Anonymous
5,327 views
A university has 1,000 computers available for students to use. Each computer
has a 250-gigabyte hard drive. The university wants
3 answers
asked by
Shelby
2,572 views
Calculate SS, variance, and standard deviation for the following population of N _ 7 scores: 8, 1, 4, 3, 5, 3, 4. (Note: The
4 answers
asked by
Liz
2,872 views
A survey of 250 lobster fisherman found that they catch an average of 32 pounds of lobster per day with a standard deviation of
6 answers
asked by
Mark
5,225 views
The distribution of 27 salaries at a small company has mean $35,000 and standard deviation $2,000. Suppose the company hires a
5 answers
asked by
Anonymous
13,076 views
32% of adult internet users have purchased products or services online. For a random sampling of 200 adult users, find the mean,
5 answers
asked by
Kay
4,215 views
Given the sample mean of GPA, the sample SD, and the SE below:
SM: 3.2454 SD: 0.4635 SE: 0.0309 constructa 95% confidence
4 answers
asked by
Sheri
833 views
The scores on the final exam in a course have approximately a bell-shaped distribution. The mean score was 72, the highest score
4 answers
asked by
Chris
1,298 views
If I know that a set of test scores has a mean of 75 and a standard deviation of 8 what can I conclude?
4 answers
asked by
allison
3,289 views
if the average number of textbooks in professors' offices is 16, the standard deviation is 5, and the average age of the
4 answers
asked by
linda
1,951 views
For a set of data with mean 12 and variance 9, approsimately 68% of the values will fall between 6 to 18. Is the true or false
3 answers
asked by
Belinda
1,016 views
A supervisor finds the mean number of miles that the employees in a department live from work. He finds x Overbar = 29 and s =
5 answers
asked by
Jade
389 views
1.On a test the mean is 75 and the standard deviation is 5.
A. What is the probability that a randomly selected score is higher
5 answers
asked by
Gerard
2,128 views
Scores on an english test are normally distributed with a mean of 33.6 and a standard deviation of 8.3. Find the 41st
4 answers
asked by
English Test Scores
2,343 views
Calculate the standard deviation of the data shown, to two decimal places
x 14 3.1 9.1 18.4 28 25.8 8 16.2
4 answers
asked by
vicke
2,422 views
Find the sum of squared deviations, the variance, and the standard deviation of:2,2,0,5,1,4,1,3,0,0,1,4,4,0,1,4,3,4,2,1,0
3 answers
asked by
John P
2,133 views
If a data set has a mean of 10.0 seconds and a standard deviation of 2.0 seconds, what is the Z score corresponding to the time
4 answers
asked by
Desiree
1,998 views
A sample consists of the following n � 6 scores: 2, 7,
4, 6, 4, and 7. a. Compute the mean and standard deviation for the sample.
3 answers
asked by
Nickie
1,587 views
The heights of a large population of students have a mean of 60" with a standard deviation of 3". What is the mean of the
4 answers
asked by
Audrey
1,553 views
A researcher measures eye color for a sample of n = 50 people. Which measure of central tendency would be appropriate to
5 answers
asked by
Lyn
5,411 views
A sample of n = 9 scores is obtained from a population with ƒÝ = 70 and ƒã = 18. If the sample mean is M = 76, then what is
4 answers
asked by
Lyndyc
1,496 views
. The following data give the 2010 gross domestic product (in billions of dollars) for al 50 states. The data entered in
4 answers
asked by
James
1,090 views
A population has an average of 150,000 with a standard deviation of 27,000. A random sample of 81 items is chosen. What is the
4 answers
asked by
anne
694 views
2. Find the variance and standard deviation of the following sample.
0 -5 -3 6 4 -4 1 -5 0 3
3 answers
asked by
omar
1,907 views
A large number of applicants for admission to graduate study in business are given an aptitude test with a resulting mean score
4 answers
asked by
Jill
3,265 views
Among employed women, 25% have never been married. Select 10 employed women at random. What is the mean number of women in such
3 answers
asked by
Sam
1,531 views
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