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Descriptive Statistics
Page 9
Questions (1,514)
Kelly is brainstorming research projects and needs to write a list of possible statistical questions.
Which of the following
1 answer
asked by
5STARZ.VONN
113 views
1. what is differences between the observations in the dataset?
2. what is a number for which 50% of the data is less than that
1 answer
asked by
penn
81 views
I need help finding the percentile
data set: 7, 8, 9, 10, 11, 14, 16, 17, 19, 21, 22, 23 Note that the mean and standard
1 answer
asked by
penn
89 views
3.
The histogram below shows how many people from different ages groups attended a school play. About how many people age 50 and
3 answers
asked anonymously
43 views
Using the relevant statistical analyses comment on the precision and accuracy of the data set 35.0, 36.8, 37.1, 40.5, 42.2 and
1 answer
asked by
Sam
76 views
Given the following measurements of protein concentration in a urine sample : 4.2, 3.8, 3.9, 4.4, 4.0 g/dL calculate the mean,
1 answer
asked by
Sam
96 views
Given the following measurements of protein
concentration in a urine sample : 4.2, 3.8, 3.9, 4.4, 4.0 g/dL calculate the mean,
1 answer
asked by
Kat
79 views
what dose it mean to calculate frequencies within database
1 answer
asked by
sebastian chapa
123 views
What does it mean to calculate frequencies within a dataset?
1 answer
asked by
Bj
103 views
The numbers below represent the age it is of the first 10 people in line at the movie theater 15 23 19 15 20 22 19 22 21 15
1 answer
asked by
Gta god
129 views
If each of these victims spent an additional 10 hours, what is the new mean and standard deviation
1 answer
asked by
Anonymous
103 views
Three whole numbers are chosen with a mean of 10 and a range of 4. Can you determine the numbers?
1 answer
asked by
Miuccia
65 views
A population has a mean of 200 and a standard deviation of 50. A simple random sample of size 100 will be taken and the sample
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asked by
Anonymous
100 views
According to the Empirical rule, what percent of the data should be between 12 and 1476 for a population with mean of 744 and
2 answers
asked by
tanner
119 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
1 answer
asked by
Anonymous
285 views
Question 5. The number of meteorites found in 11 states of the United States is
89, 47, 164, 470, 296, 30, 215, 78, 89, 48, 39
1 answer
asked by
ACB121
256 views
What is the Mean, Median, and Mode for the following electrical test:
32 31 32 35 38 32 64 (volts)
1 answer
asked by
Lis
168 views
The mean weight of 500 bags of beans at a certain store is 151 kg and the standard deviation is 15 kg. Assuming that the weights
1 answer
asked by
brenda
384 views
3.17 The following data give the amount of money (in dollars) that each of six Canadian social service
charities spent to raise
1 answer
asked by
zoya
433 views
1. Which statement about the data is true?
A. the interquartile range is 7, and the range is 17 B. the interquartile range is 7,
5 answers
asked by
that girl laylay
1,104 views
how to calculate standard deviation
1 answer
asked by
varaidzo
305 views
A packaging system fills boxes to an average weight of 19 ounces with a standard deviation of 0.6 ounce. It is reasonable to
3 answers
asked anonymously
65 views
Which of the matches the set of data? 61,58, 57,64,59,57,64,58,56,57
2 answers
asked by
Llama
548 views
what does it mean to calculate frequencies within a database
2 answers
asked by
Star
730 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
402 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
538 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
414 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
446 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
699 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
715 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
437 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
507 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
405 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
5,384 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
609 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
467 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
750 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
566 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
1,297 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
361 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
715 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
1,426 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
985 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
2,236 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
613 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
581 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
693 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
438 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
374 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
420 views
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