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The distribution of ACT scores in recent years has been roughly normal with mean 20.9 and standard deviation 4.4 The quartiles of any distribution are the values with cumulative proportions 0.25 and?
Wiki User
∙ 14y ago
17.7 and 20.9
Wiki User
∙ 14y ago
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How do solve the frequency distribution?
The answer will depend on what you mean by "solve". Find the mean, median, mode, variance, standard error, standard deviation, quartiles, deciles, percentiles, cumulative distribution, goodness of fit to some distribution etc. The question needs to be a bit more specific than "solve".
What is quartile deviational?
Quartile Deviation (QD)The quartile deviation is half the difference between the upper and lower quartiles in a distribution. It is a measure of the spread through the middle half of a distribution. It can be useful because it is not influenced by extremely high or extremely low scores. Quartile Deviation is an ordinal statistic and is most often used in conjunction with the median.why we calculating quartile deviation?
If q1q2q3 are three quartiles then Coefficent of quartile deviation is?
coefficient of quartile deviation is = (q3-q1)/(q3+q1)
What is cumolative frequency curve?
A cumulative frequency curve is a graph that shows the cumulative frequency of a data set. This type of graph can present data, such as medians and quartiles. Another name for this curve is an Ogive.
Uses of quartile deviation?
This helps to show where things may not follow the norm. Quartiles help you to keep data organized and so a deviation would show how it would vary.
How do solve the frequency distribution?
The answer will depend on what you mean by "solve". Find the mean, median, mode, variance, standard error, standard deviation, quartiles, deciles, percentiles, cumulative distribution, goodness of fit to some distribution etc. The question needs to be a bit more specific than "solve".
What is quartiles?
The quartile deviation(QD) is half the difference between the highest and lower quartile in a distribution.
What is utility of cumulative frequency curve?
The main utility of a cumulative frequency curve is to show the distribution of the data points and its skew. It can be used to find the median, the upper and lower quartiles, and the range of the data.
What is quartile deviational?
Quartile Deviation (QD)The quartile deviation is half the difference between the upper and lower quartiles in a distribution. It is a measure of the spread through the middle half of a distribution. It can be useful because it is not influenced by extremely high or extremely low scores. Quartile Deviation is an ordinal statistic and is most often used in conjunction with the median.why we calculating quartile deviation?
If q1q2q3 are three quartiles then Coefficent of quartile deviation is?
coefficient of quartile deviation is = (q3-q1)/(q3+q1)
What is cumolative frequency curve?
A cumulative frequency curve is a graph that shows the cumulative frequency of a data set. This type of graph can present data, such as medians and quartiles. Another name for this curve is an Ogive.
Uses of quartile deviation?
This helps to show where things may not follow the norm. Quartiles help you to keep data organized and so a deviation would show how it would vary.
Why do you use clumative frequncey?
Cumulative frequency is used to track the running total of frequencies in a data set. It helps visualize the distribution of values and can be used to identify patterns such as the median or quartiles. This technique simplifies data interpretation and aids in making comparisons between different sets of data.
What are quartiles?
In statistics, a quartile is each of four equal groups into which a population can be divided according to the distribution of values of a particular variable.
Which value is NOT always a number in the data set it represents?
The range, median, mean, variance, standard deviation, absolute deviation, skewness, kurtosis, percentiles, quartiles, inter-quartile range - take your pick. It would have been simpler to ask which value IS in the data set!
What is the definition of box plot?
a graphic way to display the median, quartiles, and extremes of a data set on a number line to show the distribution of the data.
What is the quartile 6.98 15.92 31.84 39.55 what is the quartile?
Quartile is basically just a quarter, so with cumulative frequency data, you leave out the upper, and lower quartiles because these are the extremeties, leaving you with your correct data
