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Histogram:
It is generally used for charting continuous frequency distribution. In histogram, data are plotted as a series of rectangle one over the other. Class intervals are shown on x axis and the frequencies on y axis. There are as many rectangle as there are classes. The height of each rectangle is taken equal to its frequency. It means the height of rectangle represent the frequency of that group. Each rectangle is gained with the other so as to give a continuous picture. The area of this graph represents the total frequencies .Such a graph is also known as block diagram or staircase diagram.
a) What is meant by secular trend? Discuss any two methods of isolating trend values in a time series.
PROPERTIES 1. The value of standard deviation remains the same if, in a series each of the observation is increased or decreased by a constant quantity. In statistical lan
Caveat We must be careful when interpreting the meaning of association. Although two variables may be associated, this association does not imply that variation in the independ
# I have to make assignment on vital statistics so kindly guide me how to make and get good marks
This question explores the effect of estimation error on apparent arbitrage opportunities in a controlled simulation setting. We simulate returns for N = 10 assets over T = 30 year
Multi stage or Cluster Random sampling Under this method, the random selection is made of primary, intermediate and final units from a given population. The area of investigat
Measurement of trend , least square method
Write down the symbols and unit for the following: mass, molar mass, molar and molarity Write down the relationship between mass and molar mass and show that the units match.
Advantages It is especially useful in case of open-end classes since only the position and not the values of items must be known. The median is also recommended if th
a b c d e supply p 3 4 6 8 8 20 q 2 6 0 5 8 30 r 7 11 20 40 3 15 s 1 0 9 14 6 13 d 15 3 12 10 20
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