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This distribution of data shows lots of lifetime averages in the middle classes but tails off sharply at both the upper and lower ends What best explains the fact that there are very few averages in?
Wiki User
∙ 11y ago
The histogram is symmetrical
Wiki User
∙ 11y ago
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How a bell curve works in school grading?
It plots people on a "normal distribution" where the majority are in the middle, usually corresponding to a C/C+ and there are fewer people as you go out towards the ends (B's and A's, or D's and F's). Essentially, if people don't naturally fall on a normal distribution it artificially fits them onto one and shifts their grades up or down. It's based upon an assumption that the majority of people are and should be graded as mediocre and fewer should fall to either side. In practice though there is often such diversity in averages due to a host of different variables/conditinos, even among very large classes/schools/districts, that this approach tends to artificially inflate or deflate grades.
225 students is to 9 classes as 125 students is to?
5 classes
Are any GRE classes available online?
There are many websites that offer the GRE classes online. Course prices vary. Check the websites that offer the online classes in your state. http://www.testmasters.com/gre.html
Into which 2 classes was the sassanid society divided into?
It was divided into FOUR classes: Zoroastrian priests, warriors, secretaries and commoners.
A school has 18 classes with 35 students in each class In order to reduce class size to 30 how many new classes must be formed?
You reduce each class by 5 (existing - new), and you have 18 classes (given).Multiplying, you have 90 extra students. To put them in classes of 30, divide.90 / 30 = 3 new classes.Three more classes because 18*35 = 630 and 630/30 = 21
Why do engineering classes in university have the highest class averages?
The averages of a class may depend on two criteria. If it is norm referenced criteria then there is a distribution according to a bell curve. If it is criterion referenced then it would have a distribution set to what the knowledge learned and compared to the objectives of the class. Secondly, the students who sign up for a class, especially criterion referenced, may be students well suited for the tasks required to make the grades.
Is it likely that the final abundance distribution among the age classes will be similar?
Is it likely that the final abundance distribution among the age classes will be similar
Is a histogram a graph that represents the cumulative frequencies for the classes in a frequency distribution?
No it is not. The ogive is a graph that represents the cumulative frequencies for the classes in a frequency distribution.
Why do engineering and computer science classes in university have the highest class averages?
Because engineers are smart and they enjoy their subjects
How do you calculate mode with two modal classes?
It is simply a distribution which has two modal classes: you cannot convert two of them into a mode.
What is the modal class in a grouped data if there are two classes with the same highest frequency?
They are both modal classes - the distribution is bi-modal.
What is 2k rule?
The 2k or 2 to K rule is used to determine the number of classes for a frequency distribution. The 2k rule should be used as a guide more than a dictator of determining the number of classes for a frequency distribution.
Methods of irrigation?
There are three broad classes of irrigation systems: Pressurized distribution Gravity flow distribution Drainage flow distribution
What is grouping of data into classes giving the number of observation in each class?
frequency distribution
Here is the histogram of a data distribution The classes all consist of just one number the class width is 1 Which of the following numbers is the median of this distribution?
4
Open ended class within the frequency distribution?
If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess "open ended" classes.
Why are unequal class intervals used in frequency distribution?
to avoid a large number of empty classes?
