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What is t-statistic?
Maths
Statistics
What are the mean, median, mode, and range of the following numbers?
$\left\{ {1,2,3,4,5,6,7,8,\left. 9 \right\}} \right.$
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Statistics
What is the total sum of the squares?
Maths
Statistics
Find the mode and mean deviation w.r.t mode for the following table

Marks\[0 - 10\] \[10 - 20\] \[20 - 30\] \[30 - 40\] \[40 - 50\]
No. of Students\[5\] \[12\] \[30\] \[10\] \[3\]

Maths
Statistics
Which one of the following is a false description?
1.In a moderately asymmetrical distribution, the empirical relationship between mean, mode and median suggested by Karl Pearson is $Mean - Mode = 3(Mean - Median)$.
2.Coefficient of variation is an absolute measure of dispersion.
3.Measure of skewness in the distribution of numerical values in the data set.
4.Kurtosis refers to the degree of flatness or peakedness in the region around the mode of a frequency curve.
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Statistics
Why is Standard Deviation important?

Maths
Statistics
Write the formula for \[E(X)\] and $Var(X)$

Maths
Statistics
The percentage of marks obtained by $ 100 $ students in an examination is given.
Marks30-3535-4040-4545-5050-5555-6060-65
No. of students141628231883

Find the mean marks of the student.
Maths
Statistics
The mean of the distribution, in which the values of \[X\] are \[1,2,...,n\] the frequency of each being unity is:
A. \[\dfrac{{n\left( {n + 1} \right)}}{2}\]
B. \[\dfrac{n}{2}\]
C. \[\dfrac{{\left( {n + 1} \right)}}{2}\]
D. None of these
Maths
Statistics
As sample size increases, what happens to the standard error of $M$?
Maths
Statistics
Which of the following is true regarding discrete variables ?
A. A discrete variable has an infinite number of possible variables
B. Discrete variable can take both whole number values as well as fraction values
C. Both of the above
D. None of the above

Maths
Statistics
How do you find the mean, median and mode of: 7, 3, 2, 1, 13, 8, 1, 5, 14, 11, 15?

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