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What is the most commonly used statistical index of variability in a group of scores is the?
Wiki User
∙ 6y ago
It is the standard error.
Wiki User
∙ 6y ago
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What is statistical anomaly?
A statistical anomaly occurs when something falls out of normal range for one group, but not as a result of being in that group. For something less abstract: More members of Group A have a trait than members of Group B do, but members of Group B are just as capable of possessing that trait.
The definition of cluster sampling is?
This technique is used when natural but relatively homogenous groupings are evident in a statistical population. This technique is commonly used in marketing research. The technique splits the population into groups and only a simple random group is selected.
Is the different between an individual score and mean of the group of scores is called deviation?
No, it is called the absolute deviation.
Is the variance of a group of scores the same as the squared standard deviation?
The standard deviation is defined as the square root of the variance, so the variance is the same as the squared standard deviation.
If a normally distributed group of test scores have a mean of 70 and a standard deviation of 12 find the percentage of scores that will fall below 50?
X = 50 => Z = (50 - 70)/12 = -20/12 = -1.33 So prob(X < 50) = Prob(Z < -1.33...) = 0.091
A statistical function commonly used to describe a group of data?
A group of data is a sample.
A statistical function commonly used to describe a group of data and which finds the middle value in a group of values that has as many valus above it in the group as are below it is the what function?
Median
Uses of ANOVA?
The ANOVA test means ANalysis of Varience and it is used to test for difference among group means. ---- That is the amount of variability between the means of the groups compared to the amount of variability among the individual scores of each group. Varience between groups versus varience within groups. Hope this helps...Natalie
The variability between group means is due to?
the level of the dependent variable
A group's reported are more likely to become equal to the statistical probability of loss?
the larger the group, the more likely the statistical probability of loss will be equal
Why are control groups used in statistical studies?
Because its the group for which the idependent variable is help constand in a statistical study.
What is statistical anomaly?
A statistical anomaly occurs when something falls out of normal range for one group, but not as a result of being in that group. For something less abstract: More members of Group A have a trait than members of Group B do, but members of Group B are just as capable of possessing that trait.
A statistical function that adds a group of values and then divides the result by the number of values in the group?
Average function
What is statistical estimate?
A statistical estimate is an estimation of population based on one or many data samples of a group. There are two types of estimates: point and interval.
What is the plural possessive noun of the words group and scores?
The plural form of the noun group is groups.The plural possessive form is groups'.Example: Several groups' representatives will be attending the meeting.The possessive form of the plural noun scores is scores'.Example: The winner will be determined by the final scores' total.
The definition of cluster sampling is?
This technique is used when natural but relatively homogenous groupings are evident in a statistical population. This technique is commonly used in marketing research. The technique splits the population into groups and only a simple random group is selected.
What is an excel function such as AVERAGE that is useful to analyze a group of measurements?
Statistical Functions
