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Descriptive Statistics
Page 9
Questions (1,581)
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2900
grams and a standard deviation of 700
1 answer
asked by
AOL
54 views
The ---represents the number of standard deviations an observation is from the mean.
a. quartile b. z dash score c. percentile d.
2 answers
asked by
AOL
33 views
A sample of 11 observations taken from a normally distributed population produced the following data.
−7.1 10.3 8.7 −3.6
4 answers
asked by
----
1,735 views
The following data represent the amount of time (in minutes) a random sample of eight students took to complete the online
2 answers
asked by
AOL
51 views
Find the population mean or sample mean as indicated.
Sample: 21,18,4,7,10 Select the correct choice below and fill in the
2 answers
asked by
AOL
40 views
what are the mean and standard deviation of a sampling distribution consisting of samples of size 16? these sameples were drawn
3 answers
asked by
helga
2,336 views
Select all that apply
Which of the following are included in a five-number summary? Multiple select question. Q2 The minimum
2 answers
asked anonymously
55 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
2 answers
asked anonymously
48 views
This assignment will assess your ability to calculate the mean, median,
mode, variance, and standard deviation of a set of data.
7 answers
asked anonymously
59 views
What are the means of the two datasets listed? (Round your answers to the nearest thousandth if necessary.)
Dataset 1:
4 answers
asked by
Muntasir Zarif
73 views
central tendency theoren
2 answers
asked anonymously
35 views
What are outliers?
2 answers
asked anonymously
31 views
Describe the change to the MEAN if 1 is added to the data set below:
4, 12, 7, 0, 5, 2
4 answers
asked by
unkown
45 views
The average temperatures in December in Washington, D.C., from 1993 to 1998 are given as a dataset.
38.1, 44.2, 35.6, 43.0, 41.0,
2 answers
asked by
andrew michal mcmahon
107 views
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
83 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
90 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
44 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
78 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
99 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
84 views
what dose it mean to calculate frequencies within database
1 answer
asked by
sebastian chapa
124 views
What does it mean to calculate frequencies within a dataset?
1 answer
asked by
Bj
105 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
132 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
1 answer
asked by
Anonymous
101 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
123 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
286 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
385 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
438 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
1,108 views
how to calculate standard deviation
1 answer
asked by
varaidzo
306 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
66 views
Which of the matches the set of data? 61,58, 57,64,59,57,64,58,56,57
2 answers
asked by
Llama
549 views
what does it mean to calculate frequencies within a database
2 answers
asked by
Star
731 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
403 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
543 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
415 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
703 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
716 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
440 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
406 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
5,391 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
612 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
471 views
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