answersLogoWhite

0


Best Answer

35

User Avatar

Elvis Franecki

Lvl 10
3y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

25

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: After 5 points are added to every score in a distribution the mean is calculated and found to be m equals 30 What was the value of the mean for the original distribution?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Statistics

What are the disadvantages of frequency distribution in points?

What are the disadvantages of frequency distribution tables


How does a discrete probability distribution differ from a continuous probability distribution?

A discrete probability distribution is defined over a set value (such as a value of 1 or 2 or 3, etc). A continuous probability distribution is defined over an infinite number of points (such as all values between 1 and 3, inclusive).


What is a cumulative frequency distribution?

According to Anderson, Sweeney Williams book Essential of Statistics For Business and Economics, 4e Edition, 2006 p. 34 cumulative frequency distribution is "a variation of the frequency distribution that provides another tabular summary of quantitative data." In simple terms, the cumulative frequency distribution is the sum of the frequencies of all points or outcomes below and including the current point.


Under what circumstances would a score that is located 5 points above the mean be considered relatively close to the mean?

The answer depends on the underlying distribution and variability in the observations. For example, if the distribution is negatively skewed then 5 points above the mean is much more significant than 5 points below the mean. Next, looking at variablity: if almost all the scores are within -1 and +1 of the mean, then a score of 5 points above the mean is very significant but if the variance is 25, for example, then 5 points above the mean is one standard deviation from the mean: for a Normal distribution around a third of the observations would be further away - that is no big deal and so a score of mean+5 would be considered relatively close to the mean.


5000 students participated in a certain test yielding a result that follows the normal distribution with means of 65 points and standard deviation of 10 points.?

5000 students participated in a certain test yielding a result that follows the normal distribution with means of 65 points and standard deviation of 10 points.(1) Find the probability of a certain student marking more than 75 points and less than 85 points inclusive.(2) A student needs more than what point to be positioned within top 5% of the participants in this test?(3) A student with more than what point can be positioned within top 100 students?i dont understand the question.. could you help me??pls....

Related questions

In a distribution with a SD equals 20 a score that above the mean by 10 points will have a z score equals 1.00 true or false?

False.


What are the disadvantages of frequency distribution in points?

What are the disadvantages of frequency distribution tables


What is the carat value of 5 points?

Five points equals .5 carats where one carat equals 1.00 points.


Abc is a triangle in which points p and r are such that ap equals pr equals rb also points q and s are on ac such that aq equals qs equals sc show that 3pq equals bc?

Abc is a triangle in which points p and r are such that ap equals pr equals rb also points q and s are on ac such that aq equals qs equals sc show that 3pq equals bc?


Original points for touchdown?

6 points


How is a frequency curve in statistics different from a frequency polygon?

In order to plot the points on either the frequency polygon or curve, the mid values of the class intervals of the distribution are calculated. Then the frequencies with respect to the mid points are plotted. However in a frequency curve the points are joined by a smooth curve, where as in a frequency polygon the points are joined by straight lines. Apart from this major difference, a frequency polygon is a closed figure where as the frequency curve is not.


What is a ring distribution system?

This is a system whereby the primaries of distribution transformers form a closed loop. The distributors are tapped from different points of feeder througg distribution transformers... Vspyce naani!


The locus of points equidistant from the lines y equals -2 and y equals 8?

The locus of points between 2 lines will always be another line that is halfway between the original 2 lines. In this case, that will be a line halfway between y=-2 and y=8, and since 3 is halfway between -2 and 8, the locus will be the line y=3.


What points lies on the graph of the function y equals 4x?

Since there are no "following" points, none of them.


How many weight watchers points in brie cheese?

1 ounce equals 3 points


4 equals P ON A C?

Points on a Compass?


How are points calculated in Wii bowling?

The same way they are at a bowling alley.