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Measures of Central Tendency and Dispersion
Page 5
Questions (309)
i need to know what mean, median, mode, and range are?
3 answers
asked by
courtney lara
840 views
A sample of the number of study per week of college students is collected. Some of the sample results of the survey are given in
3 answers
asked by
Ronnie
1,473 views
1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points
1 answer
asked by
CHIMI
1,004 views
for a particular sample of 77 scores on a psychology exam, the following results were obtained:
first quartile=44, third
2 answers
asked by
mary- please show correct calculations
800 views
What are the minimum, first quartile, median, third quartile, and maximum of the data set;
40, 7, 2, 35, 12, 23, 18, 28
4 answers
asked by
HELP URGENT ALGEBRA
796 views
If the mean of a set of data is 20.00 and 12.20 has a z-score of -1.30, then the standard deviation must be: What formula would
3 answers
asked by
Belinda
773 views
Sample salaries (in dollars) of high school teachers are listed. Find the sample mean and standard deviation of the data.
49,632
2 answers
asked by
bridget
766 views
a population has mean 15 and standard deviation 5. if 68% of the values in the population are between 10 and 20, the population
3 answers
asked by
nikki
775 views
What are the mode, median, and range of the following set of numbers?
6, 7, 7, 7, 8, 4, 4, 6, 3, 7, 1, 0:
5 answers
asked by
--
505 views
Over 350 students took a college calculus final exam. the scores of the students follow a normal distribution. using the
2 answers
asked by
Stephanie
734 views
Q1) The life of an Appex brand battery is 500 days with a standard deviation of 12 days. What percent of values are between 488
2 answers
asked by
Timbs
674 views
what percentage of students studied between 30 and 40 hours? Range 10-50, Mean- 35, standard deviation-5.
2 answers
asked by
kim
658 views
I need help with (b): A small company with 5 employees wants to know some statistics about their employee's ages. They surveyed
2 answers
asked by
Donna
655 views
Sales made last year by Lane's Appliance Store are listed below. The first number tells how many employees made the sales
1 answer
asked by
Anonymous
649 views
Fill in the blanks with the appropriate raw score, z score, t scores . Mean =50, sd = 5. Raw 35
2 answers
asked by
Saf
622 views
find the mean.variance.and standard deviation for the following data 6,12,6,8,10,8,12,8,14,16
2 answers
asked by
ajaykumar
617 views
For this class, the first quiz had a mean of 90.4% with a standard deviation od 16.6%. The homework scores have a mean of 81.7%
2 answers
asked by
lauren
649 views
Group the largest data set and find mean, median, mode, variance, standard deviation, 15-th, 45-th and 80-th percentiles of the
1 answer
asked by
metu
640 views
A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value?
3 answers
asked by
Terri
592 views
For a particular sample of 63 scores on a psychology exam, the following results were obtained.
First quartile = 57 Third
2 answers
asked by
Denise
604 views
What is the mean absolute deviation of the following data set?
{80, 90, 95,85, 70}
1 answer
asked by
llc
29 views
This question says: Statistical information for a data set is given.
-the mean is 18.1 -the z-score for 13.0 is -1.7 What is the
2 answers
asked by
Herbert
578 views
A study of the Consideration of Future Consequences(CFC) scale found a mean score of 3.51, with a standard deviation of 0.61,
2 answers
asked by
eid2013
564 views
What is the mean absolute deviation of 49, 55, 52, 46, 47, 42, and 38?
2 answers
asked by
Mariana
553 views
find the range, interquartile range and 50th percentile of the following distribution.
20, 28, 10, 20, 19, 30. I got a range of
4 answers
asked by
Sohmay
568 views
The test scores of students in a class test have a mean of 65 and with a standard deviation of 8. What is the probable
2 answers
asked by
lisa
570 views
3. The personnel director of a corporation will study the overtime work during the previous year for the 2,575 clerical workers.
2 answers
asked by
Maura
547 views
can you please check my work.
The time in minutes that it took five students to complete the math test was 45, 27, 30, 25, and
3 answers
asked by
sara
569 views
The Following Table gives the sales for the Sasquatch Men's Shoe store:
Shoe Size , Frequency (number of pairs sold) 4 , 8 5 , 12
2 answers
asked by
josh
548 views
Given the following set of numbers: x=7.1, 1.8, 2.1, 1.5, 2.1.
Find the median, mean and standard deviation. State the formulas
2 answers
asked by
Maryan
541 views
Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f.
2 answers
asked by
Anonymous
542 views
A standardized third grade reading test, called the We Can Read Test, has a mean of 50 with a standard deviation of 10. A
1 answer
asked by
Lee
525 views
Find the Median, IQ, UQ, IQR
5,9,11,3,14,20,25 Meidan 11 LQ 5 UQ 20 IQR 15 Did I do this right
2 answers
asked by
Joe
513 views
hey guys,im sorry if i did any wrong that my question has been deleted,but please help me...
hi,care to explain this..its really
1 answer
asked by
亚
522 views
A study involving the economic burden of congestive heart failure found that the lengths of hospital stays for patients had a
2 answers
asked by
ali awan
508 views
The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 12 hour periods. Below is the sample:
14
2 answers
asked by
Jen
521 views
For a particular sample of 63 scores on a psychology exam, the following results were obtained.
First quartile = 57 Third
2 answers
asked by
Denise
538 views
For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard
2 answers
asked by
Donna
523 views
if there are 145 test questions, and the mean of the test scores for a class is 100 with a standard devation of 15, what
2 answers
asked by
Anonymous
534 views
What is the mean absolute deviation for this data set? Below is a data set.
{1, 2, 3, 4, 5}
1 answer
asked anonymously
10 views
a survey was taken at the park. Children were asked how many times they had visited the park this year. find the range, mode,
3 answers
asked by
jacob
499 views
1. A test has a mean of 50, standard deviation of 10.
A. What scores separate the middle 25% from the rest b. What proportion
2 answers
asked by
Susan
520 views
Blockbust video collected data to figure out how many movies they were renting per month. After 5 months, the store wanted to
4 answers
asked by
Destiny
512 views
length of time in minutes required to complete exercises is distributed with a mean of 60 minutes and a std. deviation of 8
2 answers
asked by
Sue
502 views
3. In a sample of 64 students given an examination in statistics, it is found that the mean weight is 57 kg with standard
2 answers
asked by
suhad
484 views
What score in a distribution that has a mean of 500 and a standard deviation of 100, would identify the top 60% of scores?
2 answers
asked by
Melissa
487 views
Can you step by srep dumb this down so that I can understand how to get the answer please?
A set of 50 data values has a mean of
2 answers
asked by
MissPatte
472 views
For a stat class the mean of the midterm is 75 with a standard deviation of 7. What percentage of students scored between 67 and
2 answers
asked by
Chris
476 views
Data Information: Wage Income Statistics: Men VS Women Wage gap, by description, is the difference in salary among two groups of
1 answer
asked by
Trey
475 views
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
1 answer
asked by
Anonymous
465 views
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Parent Categories (13)
Data Analysis
Data Analysis and Descriptive Statistics
Data Analysis and Statistics
Data Analysis or Statistics
Data Analysis/Statistics
Data and Statistics
Descriptive Statistics
Probability and Statistics
Statistical Analysis
Statistical Measures
Statistics
Statistics and Probabilities
Wage statistics