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Descriptive Statistics
Page 10
Questions (1,713)
Which of the matches the set of data? 61,58, 57,64,59,57,64,58,56,57
2 answers
asked by
Llama
552 views
what does it mean to calculate frequencies within a database
2 answers
asked by
Star
736 views
Fifty undergraduates participated in the selection procedures. Their average age was 21 with a standard deviation of 1.20. There
1 answer
asked by
Ann
405 views
Suppose we divide the patients according to whether or not they received antibiotics, and calculate the
mean and standard
3 answers
asked by
maria
548 views
If a have calculated 2 standard deviations from a sample of for example 25 day duration in a hospital for 2 groups ( 1 group was
1 answer
asked by
maria
422 views
Use gender to assess if there is any difference in duration of hospital stay based on gender.
what is the sample size, mean,
1 answer
asked by
maria
451 views
Find the corresponding z-score to the given value and determine whether the value is unusual.
A weight of 225 pounds among a
3 answers
asked by
Joe
708 views
The mean price of photo printers on a website is $241 with a standard deviation of $60. Random samples of size 30 are
2 answers
asked by
April
719 views
if a class has 30 students and the average grade on a 100 point exam is 72% and the median is 74% how many students got above 90
3 answers
asked by
Stacy
443 views
Mean=15.854, Median=15.99, Mode=16.21, SD=0.661381
1) what is the probability that a randomly chosen bottle will contain 16
2 answers
asked by
MM
510 views
Before taking her final test, Tammys mean was 88% If she scores 68% on the final, her mean will be 86%. However, if she scores
1 answer
asked by
josh
411 views
Buckley Farms produces homemade potato chips that it sells in bags labeled 16 ounces. The total weight of each bag follows an
2 answers
asked by
cfgvbh
5,404 views
The mean annual starting salary of a new graduate in a certain profession is $43,000 with a standard deviation of $500. What is
2 answers
asked by
Bobbie
613 views
Heights of men on a baseball team have a bell-shaped distribution with a mean of 169 cm169 cm and a standard deviation of 9
1 answer
asked by
Mark
474 views
In an extensive study involving thousands of British children, Arden and Plomin (2006) found
significantly higher variance in the
1 answer
asked by
jessie
754 views
The following is a list of 12 measurements:
50, 57, 85, 34, -28, 68, -17, -33, 81, -12, -70, -17 Send data to Excel Suppose that
2 answers
asked by
Anonymous
570 views
Giving a test to a group of students, the grades and gender are summarized below
A B C Total Male 17 5 2 24 Female 7 11 12 30
4 answers
asked by
Anonymous
1,303 views
A set of data with a mean of 64 and a standard deviation of 5.9 is normally distributed. What value is within +3 standard
1 answer
asked by
Samantha
365 views
Suppose a Normal model describes the fuel efficiency of cars currently registered in your state. The mean is 27 mpg, with a
3 answers
asked by
Ali
725 views
The time until recharge for a battery in a laptop computer under common conditions is normally distributed with mean of 270
3 answers
asked by
Sarah
1,431 views
From the length(in seconds) of 80 randomly chosen U2 songs, the mean determined was 289.6986295 and standard deviation was
2 answers
asked by
Jenny
993 views
A group of 894 women aged 70-79 had their height and weight measured. The mean height was 159 cm with a standard deviation of 5
4 answers
asked by
Candice
2,244 views
Statistics Find The Mean and Median Question 28.
IQ Scores: Use the listed IQ scores. IQ tests are designed so that the mean IQ
4 answers
asked by
Lexus
623 views
A firm produces batteries that have a lifetime which is normally distributed with a mean of 360 minutes and a standard deviation
2 answers
asked by
Sam
584 views
Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day.
2 answers
asked by
Lui
698 views
Using the following data set
a. Calculate the mean, mode, median, standard deviation, minimum, maximum and range b. Draw the
1 answer
asked by
ABDULA YUSUF
449 views
The average monthly attendance to the senior citizen bowling league is 67 with a stdev of 6.5. What is the probability that a
1 answer
asked by
Max
375 views
1.it has been reported that 83% of government employees has been migrated onto the single-spin salary structure.if a sample of
1 answer
asked by
Ras
422 views
Quick questions. Can you please put a website where I can find what Mode, Range, Median , and mean. Also I need some examples,
1 answer
asked by
Girl with questions.
388 views
A "Friendliness Test" has a mean of 50 and a standard deviation of 9. Treat these values as parameters. A sample of 9
1 answer
asked by
Jasmine
380 views
Find the standard devation of 4,6,8,10 and 12
1 answer
asked by
Olatunde Enoch
326 views
) Determine the number(range) of chocolate chips in a bag that make up the middle 99% of bags.
2 answers
asked by
regi
570 views
Explain the general rationale behind using a z-score for describing how an individual performed on an exam compared to just
1 answer
asked by
slomomo
616 views
What is deviation?
And what is the definition of frequency distribution & how would I solve a problem in 8th grade math with this
4 answers
asked by
Aayla
666 views
A sample has a mean of M = 73 and a standard deviation of s = 5
1 answer
asked by
dj
443 views
Suppose that weights for women in their 20’s average 125 lb., with a standard deviation of 14 lb. For a sample of size 50 how
1 answer
asked by
Anonymous
422 views
Without calculating values of z, tell which of these sample means will have the most extreme standardized score and which will
1 answer
asked by
Debbie
426 views
Instructions for the Experiment / Data Collection regarding questions 1-4: Collect data regarding the caffeine content in a 16oz
2 answers
asked by
Nisa (Please Help me)
532 views
For a population with a mean of 80 and a standard deviation of 12, what is the Z score corresponding to an individual score of
1 answer
asked by
Anonymous
376 views
numbers given are: 3.5, 2.6, 3, 3.1, 2.6, 2.8,
range is 0.9 z-score of 3.1 is Okay I am lost
1 answer
asked by
Patricia
293 views
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown
1 answer
asked by
Rustie
456 views
find the z-scores for which 92% of the distribution's area lies between -z and z
3 answers
asked by
Carolyn
1,483 views
test has a 500 mean with a sd of 150; with a score of
.13% both negative and postive 2.14%
1 answer
asked by
Anonymous
352 views
The mean (μ) of the scale is 55 and the standard deviation (σ) is 7. Assuming that the scores are normally distributed, what
2 answers
asked by
johnny
507 views
i need help with this Question
The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56
3 answers
asked by
JOJO
515 views
use the z score table to find the floolwing:
a) p(1.2<z<2.4) b) p(z>1.675) please show working out
1 answer
asked by
jay
408 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
1 answer
asked by
Vanessa
1,066 views
If a measured distribution has an average of 65 and a variance of 16 and the standard
deviation of the random error is 4
1 answer
asked by
sas
396 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
1 answer
asked by
Mia
816 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
1 answer
asked by
Alejandra
633 views
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