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The following data give the repair costs (in RM) for 30 randomly selected cars from a list of cars involved in collisions.
a) By using RM 1 as the lower limit of the first class and RM 1400 as the width of each class, construct a frequency distribution table.
b) Compute the cumulative frequency.
c) Draw a cumulative frequency polygon of the type "less than or equal".
d) From your graph in c), estimate the following:
(i) median
(ii) first quartile
(iii) third quartile
(iv) inter quartile range
Question: (a) A normal distribution is thought to have a mean of 50. A random sample of 100 gave a mean of 52.6 and a standard deviation of 14.5. A significance test was carri
CALCULATE THE PERCENTAGE OF REFUNDS EXPECTED TO EXCEED $1000 UNDER THE CURRENT WITHHOLDING GUIDELINES
Descriptive Statistics : Carrying out an extensive analysis the data was not a subject to ambiguity and there were no missing values. Below are descriptive statistics that hav
Why are graphs and tables useful when examining data? A researcher is comparing two middle school 7th grade classes. One class at one school has participated in an arts program
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how to find mse from ssr table not the anova table
Statistical Errors Statistical data are obtained either by measurement or by observation. Hence to think of perfect accuracy is only a delusion or a myth, It is no
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The investor has constant wealth 1 and is o?ered to invest in shares of a project that either gains 3=2 or loses 1 with equal probabilities. Therefore, if the investor obtains sha
advantage and disadvantage
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