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Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,756 Questions
What set of numbers does -14 belong to?
There are many sets of numbers -14 belongs to:
- set of negative integers
- set of rational numbers
- set of real numbers
- set of complex numbers, which is the biggest known number set
What events are correlated but do not necessarily have a causal relationship?
A Teacher drops A box of chalk, and her chalkboard Crack a few minuets later.
Who uses statistical data analysis?
There are many people who use statistical data analysis. Scientists, websites, and companies are all use of statistical data analysis. This analysis is beneficial to the people that study it.
A 75 B 2 C 44 D 27 E 8 F 91 G 18 H 46 I 38 J 62?
First put the numbers/terms in rank order. That is lowest to highest, or vice versa.
2,8,18,27,38,44,46,62,75,91.
The MEDIAN is the absolute middle middle number. Since there are an even number of terms, there is no absolute middle term. So we take the two nearest to middle terms, they are 38 & 44. (NB This leaves four terms to the left of 38, and four terms to the right of 44.
We then add the two terms and divide by '2'.
Hence ( 38 + 44) / 2 = 82/2 = 41
'41' is the median.
What are the mean median mode and range of 100 90 85 90 80 75 80 90?
100,90,85, 90,80,75,80.90.
Rearrange the terms in rank order.
75,80,80,85,90,90,90,100.
MEAN :
Add all the terms together and divide by the number of terms.
Hence:- (75+80+80+85+90+90+90,+100)/8 =>
690/8 = 86.25
MEDIAN :
Is the Absolute middle term. Since there are an even number of terms, we take the two middle terms, which are 85 & 90. (NB This leaves three terms to the left of '85' and three terms to the right of '90'. ). Add these two terms and divide by '2'.
Hence (85+90) / 2 = 87.5
MODE :
Is the most frequent term. The one term that appears most often. In this case it is '90', as there are three lots of '90', but only two lots of 80, and only one each of the remaining terms. = 90.
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40,000
the average number - add all the numbers together - divide by how many numbers there are and you find the mean.
24,35,62,27 =148 148 divided by 4 = 37 - which is your mean
Is SPSS used in qualitative data analysis only?
No, SPSS (Statistical Package for the Social Sciences) is not limited to qualitative data analysis only. In fact, SPSS is primarily designed for quantitative data analysis, which involves analyzing numerical data using statistical techniques. It is widely used in fields such as social sciences, psychology, economics, and market research.
SPSS provides a range of features and tools for SPSS quantitative data analysis, including:
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Descriptive statistics: SPSS allows you to calculate and summarize descriptive statistics such as means, standard deviations, frequencies, and percentages. These statistics provide an overview of the distribution and characteristics of your data.
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Inferential statistics: SPSS offers a variety of statistical tests for making inferences about populations based on sample data. These tests include t-tests, ANOVA (Analysis of Variance), chi-square tests, correlation analysis, regression analysis, and more.
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Data manipulation: SPSS provides functionalities to manipulate and transform data. You can recode variables, compute new variables, merge datasets, filter cases, and perform various data transformations to prepare your data for analysis.
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Data visualization: SPSS enables you to create charts, graphs, and plots to visually represent your data. This helps in understanding patterns, relationships, and trends in the data.
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Advanced statistical techniques: In addition to basic statistical tests, SPSS also supports more advanced techniques. For example, it offers tools for factor analysis, cluster analysis, discriminant analysis, survival analysis, and nonparametric tests.
What does the central limit theorem say about the shape of the sampling distribution of?
The Central Limit THeorem say that the sampling distribution of .. is ... It would help if you read your question before posting it.
Importance of statistics in mass communication?
Before examining the relevance of statistics to mass communication studies, there is a cogent need to understand what statistics means. Statistics is a datum that can be represented numerically. According to Dr. Victor Ayedun
Aluma,
statistics is information put in form of numbers; also, it is the procedure for getting information out of numbers. Statistics is also the science of collecting, organizing, processing, analysing and interpreting data. Through statistics we get meaningful information out of massive amount of data for communication and research.
The relevance of statistics to mass communication studies cannot be overemphasized. To ensure that stories are accurate and credible, journalist have to examine flood of information related to economic, political and social phenomena, including scientific and academic research reports, public opinion data, political polls, consumer survey, e,t.c
Advertising and public relations executives must be able to understand and the latest available business information such as: market trends, sales, competitive expenditures, audience rating, and a lot of other facts pertaining to consumers, products companies and markets. Lack of statistical methods to mass communication studies limits their understanding of today's world and their professional preparation to work in this world.
How do you calculate mean absolute deviation?
The Mean Absolute Deviation is calculated in three simple steps.
1) Determine the Mean: Add all numbers and divide by the count
example: the weights of the following three people, denoted by letters are
A - 56 Kgs
B - 78 Kgs
C - 90 Kgs
Mean = (56+78+90)/3
= 74.6
2) Determine deviation of each variable from the Mean
i.e 56-74.6 = -18.67
78-74.6= 3.33
90-74.6 =15.33
3) Make the deviation 'absolute' by squaring and determining the roots i.e eliminate the negative aspect
Thus the Mean Absolute Deviation is (18.67 +3.33+15.33)/3 =12.44
Alternatively , you can use the excel formula =AVEDEV(56,78,90) to obtain the result.
Different Methods
There are different formulas for the calculation of mean absolute deviation. For example mean absolute deviation from mean and mean absolute deviation from median. Similarly the formulas for grouped and ungrouped data are also different. In order to see the calculation of mean absolute deviation from mean and mean absolute deviation from median for both grouped and ungrouped data please visit the link given below.
Let's consider the sample {2, 2, 3, 4, 14}.
First of all you must decide, what am I calculating the mean absolute deviation from? Will it be the mean, the mode or the median? (It could be any measure of what statisticians call 'location' or 'central tendency'.)
For no good reason except that it's familiar to most people let me choose the mean of the sample. It proves to be 5.
Now we need the absolute deviation of each sample element from the mean. Notice that these are the distances between the mean and the sample elements.
|2 - 5| = |-3| = 3
|2 - 5| = |-3| = 3
|3 - 5| = |-2| = 2
|4 - 5| = |-1| = 1
|14 - 5| = |9| = 9
The sum of these is 18; then their average is 18/5 = 3.6. So the mean absolute deviation (from the mean) is 3.6. In other words, the sample points are, on average 3.6 units from the mean.
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z score is defined as z = (x-mean)/sd, where mean is the mean of the sample (or population) and sd is the standard deviation of the sample or the population. x is the raw score. z-score standardizes the data. The standardized data will have a zero mean and unit variance. It has numerous applications in statistics.
How do you calculate coefficient of variation in spss?
The coefficient of variation is a method of measuring how spread out the values in a data set are relative to the mean. It is calculated as follows:
Coefficient of variation = σ / μ
Where:
σ = standard deviation of the data set
μ = average of the data set
If you want to know more about it, you can visit SilverLake Consulting which will help you calculate the coefficient of variation in spss.
SPSS (Statistical Package for the Social Sciences) is a software program used by researchers from various disciplines to quantitatively analyze complex data. SPSS introduces the SPSS environment, basic data preparation and management, descriptive statistics and general statistical analysis (t-test, ANOVA, correlation, regression).
If you are looking for the best assignment writing services, then you should look for Silverlakeconsult, SPSS-tutor, and more. They provide you with the best SPSS help with high-quality and plagiarism-free content. Also, they complete your assignment on time and make sure you score well in your exams.
There are 5280 feet in one mile.
Therefore in 4000 feet there are 4000/5280 miles.
Cancel down by '10'
Hence
400/528
Cancel down by ''8'
50/66
Cancel down by '2'
25/33 miles or in decimal 0.757575.... miles.
4000 yards is equal to how many miles?
In 1 mile there 1760 yards.
Hence 4000 / 1760 = 2.272727... miles.
That is approximately 2.27 miles
or 2 miles 480 yards.
How many combinations are there in swertres?
You need to specify how many characters, form the eight, are to be in the combinations. For example, there is only 1 combination of 8 characters.
If you roll a die 300 times how many times would you expect to get a 5?
If George rolls the die 300 times, how many fives will he roll?
If a is bigger than b and b bigger than c which statement must be true?
if a is bigger than b and b is bigger than c a must be bigger than c... Transitivity
How many codes are possible with 5 digits and one letter?
If the digits can be any number from 0 to 9 and there are no restrictions on a number being used more than once then you have 10 choices for each digit and 26 choices for the letter.
The total number of possible codes is 10 x 10 x 10 x 10 x 10 x 26 = 2600000
What do you do when there are two medians?
Add the two answers together and divide it by 2. For example, the median of 32 and 42 would be 37. It's the only reasonable answer I can think of, but this is from a math nerd, so...
What is the difference between bode plot and root locus?
Bode plot is for Frequency Response Analysis
Root-Locus plot is for time-domain analysis
