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Measures of central tendency and variability

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Questions (117)

A set of 50 data values has a mean of 15 and a variance of 36.Find the standard score of a data value = 30
1. 5 answers
2. asked by Jennifer
3. 338 views
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
1. 3 answers
2. asked by Jen
3. 399 views
How do mean, median, mode, and standard deviation differ from one another? Support your answers with specific examples
1. 1 answer
2. asked by julie
3. 417 views
The mean salary per day of all the 5000 employees who work in a company is 150 Rs. and the standard deviation is 15 Rs. Let be x
1. 1 answer
2. asked by sandhya
3. 486 views
A set of 50 data values has a mean of 30 and a variance of 4.I. Find the standard score (z) for a data value = 26. II. Find the
1. 2 answers
2. asked by Celest
3. 551 views
1. what are the mean and standard deviation for this distribution of weekly take-home pay amounts?2. what percentage of the pay
1. 2 answers
2. asked by margie
3. 490 views
Which statistical method best represents this set of data? 1,2,5,2,3,7,300,5,3,3a.mean b.median c.mode d.standard deviation I'm
1. 3 answers
2. asked by Lily
3. 495 views
In 1995, more than 1.1 million students in the U.S. took the SAT. On the mathematics section, the mean =507, s=112 (standard
1. 1 answer
2. asked by christine
3. 412 views
The median number of magazine appearances made by 777 models is 555. The range of number of magazine appearances by those models
1. 3 answers
2. asked by hunter
3. 1,547 views
In these set of discrete, ungrouped data: 60, 62, 63, 65, 59, 59, 58, 60, 62, 62, 63, 63, 59, 61, 60, 64, 61, 63. Find
1. 1 answer
2. asked by Raven
3. 51 views
A store sells five models of cameras for $190.00, $420.00, $270.00, $300.00, and $420.00. If the sales tax rate is 6%, what are
1. 1 answer
2. asked by sara
3. 61 views
2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule?3. If we are
1. 4 answers
2. asked by Cam
3. 1,329 views
A sample of 12 measurements has a mean of 20 and a standard deviation of 2. Suppose that the sample is enlarged to 14
1. 1 answer
2. asked by Bob
3. 1,096 views
Measures of Central Tendency,variability, and postion12th Grade math class. organize the data
1. 2 answers
2. asked by Lisa
3. 1,077 views
the following data lists the average monthly snowfall for jan 15 cities around us:34 9 28 24 0 46 34 20 1 38 5 16 32 26 25 find
1. 2 answers
2. asked by mary
3. 1,042 views
Which set of population data is the least dispersed from its mean?2, 3, 2, 9 4, 0, 4, 0 6, 2, 2, 2 9, 3, 5, 3
1. 3 answers
2. asked by Junior
3. 977 views
3.Indicate whether each of the given statements could apply to a data set consisting of 1,000 values that are all different.a.
1. 2 answers
2. asked by Anonymous
3. 934 views
The number of column inches of classified advertisements appearing on Mondays in a certain dailynewspaper has mean 320 inches
1. 3 answers
2. asked by lauren
3. 944 views
what set of 7 numbers have the following landmarks''''mode 21 median 24 maximum 35 range 20
1. 2 answers
2. asked by megan
3. 946 views
A set of 50 data values has a mean of 27 and a variance of 16.I. Find the standard score (z) for a data value = 19. II. Find the
1. 1 answer
2. asked by Jennifer
3. 929 views
I have a couple questions I answer for home work could some look atthem and tell me If I am doing them right I also am having
1. 4 answers
2. asked by KEENE
3. 808 views
8.11) For the manufacturing plant discussed in Exercise 8.10, the union president and the human resources director jointly
1. 2 answers
2. asked by Lina
3. 746 views
a. Find the mean, median, and range for each of the two data sets.b. Find the standard deviation using the rule of thumb for
1. 5 answers
2. asked by Deb
3. 759 views
The data set for our course is a sample of a survey conducted on the population of the American Intellectual Union (AIU). It is
1. 3 answers
2. asked by Wanda
3. 678 views
james works an average of 22 hours per week with a standard deviation of 3.5 hours. what percentage of the time does james work
1. 3 answers
2. asked by hannah
3. 630 views
An automobile in surer has found that repair claims have a mean of $1520 and a stardard deviation of $770. Suppose that the next
1. 1 answer
2. asked by Kim
3. 636 views
Here are the scores of13 students on an algebra test. 55 , 57 , 60 , 60 , 65 , 68 , 70 , 70 , 80 , 80 , 84 , 89 , 92 Notice that
1. 1 answer
2. asked by cathy
3. 610 views
Simply reporting measures of central tendency or measures of variability will not tell the whole story. Using the following
1. 2 answers
2. asked by Den
3. 570 views
A quiz consists of 10 questions. Each question is marked either “right” or “wrong.” For each student in the class, the
1. 4 answers
2. asked by Daniel
3. 567 views
1. For the following exercise, complete the following by using the data sets below that provides the ages of the first seven
1. 2 answers
2. asked by Anonymous
3. 540 views
Hi I am a college student in wireless technology but am only very sketchy on statistics. I'm am trying to write a program to
1. 1 answer
2. asked by jay
3. 472 views
Second ProblemA. determine the mean, median, and the standard deviation B. Determine the coefficient of skewness using Pearson's
1. 1 answer
2. asked by Jose
3. 473 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. 1 answer
2. asked by Anonymous
3. 473 views
1. What are the main median and Range of the data set 15, 16, 21, 23, 25, 25, 25, 39
1. 1 answer
2. asked by Nichole
3. 459 views
14.how would you describe this set of data? In other words, how would you describe the “average” score (mean, median or mode
1. 1 answer
2. asked by Lola
3. 476 views
The data set for the study is a sample of a survey conducted on the population of the American Intellectual Union (AIU). It is
1. 1 answer
2. asked by Brandy
3. 465 views
I need assistance in calculating the mean and standard deviation from data collected using 2 surveys, strongly agree, agree,
1. 1 answer
2. asked by Shavon
3. 464 views
Sunny works as an assistant to a real estate agent. she prepares a price comparison for a client thinking of selling a house.
1. 1 answer
2. asked by anonymous
3. 443 views
Select the correct answer from each drop-down menu.Coach Loren asks Kerry to analyze the batting percentages of players on the
1. 1 answer
2. asked anonymously
3. 37 views
A county with a large population need to know what the average income is for tax purposes. A simple random sample of 1000
1. 1 answer
2. asked anonymously
3. 42 views
What is the first thing you should do to find the mean and range of data?(1 point) Responses put the numbers in order from least
1. 1 answer
2. asked by Kanna
3. 40 views
Jacob surveyed members of three different gyms and recorded the number of hours they exercised last week. The mean and standard
1. 1 answer
2. asked by jeff
3. 26 views
A track coach records three sprinters' statistics throughout the season. The median 400-meter race time, in seconds, and the
1. 1 answer
2. asked by jeff
3. 31 views
the descriptive statistics that indicates the typical distance of a score form the mean is thet score standard deviation
1. 1 answer
2. asked anonymously
3. 24 views
Let the first entire population be -10 0 10 20 30 and second 8 9 10 11 12Calculate the mean,media,mode range variance and also
1. 1 answer
2. asked by Mirriam Mwanza
3. 13 views
let the first entire population be -10 0 10 20 30 and second 8 9 10 11 12 calculate the mean, median, mode range variance and Q
1. 1 answer
2. asked anonymously
3. 12 views
Let the first entire population be -10 0 20 30 and second 8 9 10 11 12 calculate the mean,median, mode,range,variance and also
1. 1 answer
2. asked anonymously
3. 18 views
Find the minimum, first quartile, median, third quartile, and maximum of the data set below.4.7 3.4 6.4 4.6 4.8 4.9 5.9 4.2 12.3
1. 1 answer
2. asked anonymously
3. 15 views
Mr. Gomez is researching the price of a new car. He narrowed his search down to five car dealers. The price of the car at each
1. 1 answer
2. asked anonymously
3. 49 views
PART 1:The mean and MAD for Martin's test scores in questions 4 and 5 provide us with important information about the data. The
1. 1 answer
2. asked anonymously
3. 27 views

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Parent Categories (11)

Data Analysis
Data Description
Descriptive Statistics
Martin's Performance
Probability and Statistics
Quantitative and Qualitative Data Analysis
Quantitative Data Analysis
Statistical Analysis
Statistics
Statistics and Data Analysis
Statistics/Dataset Analysis

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