The sum of 20 observations is 300 and its sum of square is 5,000 and median is 15. Find its coefficient of skewness and coefficient of variation?

Q: If S=12 and X-40. Then the coefficient of variation (Cvar) is equal to 0.3 36 30 O 60

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Q: one standart?

A: here use Empirical rule

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Q: 18, 12, 14, 15, 13, 14, 12, 17, 16, 15 solve for median

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Q: For a raw data, the arithmetic mean is 24 and sum of the observations (values) is 840. One of the…

A: Here given that  Sum of observation is 840Mean is 24

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Q: Consider that a data set of 10 data points has a mean of 5. If every data point was doubled in the…

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Q: The mean of a set of data is the sum of all values in a data set divided by the number .of values in…

A: GivenMean:-It is the one of the measures of central tendencyMean(x) of a set observations is defined…

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Q: If the mean of the values 50, x, 55, 35, 15, 25 is 40, then the value of x must be......

A: Given : The mean of the values : 50, x, 55, 35, 15, 25 is 40. We have to find the value of x.

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Q: In a construction company, there are three groups of engineers: civil, electrical and mechanical…

A: We know that the coefficient of variation is given by;  CV = SD*100/Mean

Q: If X-B(7,0.2), the mean is

A: Formula : Mean = np

Q: µ = 43 and s = 8, what is the z score ? Margret X = 43, z = Katie X = 55, z = Dorinda X = 47, z =…

A: Given that  µ = 43 and s = 8 Formula for Z-score  Z=(X-µ)/s

Q: The coefficient of variation of the data: 2, 2, 2, 2, 2, 2, 2 is 40% 20% 0% O O

A: Solution: x x-ˉx=x-2 (x-ˉx)^2 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 --- ---…

Q: Is the answer correct?

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Q: Determine whether the data set represents a direct variatión, ail y 420 х 2 3 280 4. 210 Direct…

A: Answer: G. Inverse variation.

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Q: If the values of the variable X are 2, 3, 4, 5 and P(X=x) 0.20, 0.30, 0.20 and 0.30, respectively,…

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Q: If there is a small amount of variation, then

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Q: What proportion of the variation in y can be explained by the variation in the values of x?

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Q: Vp Pq n

A: Given that

Q: The sum of 20 observations is 300 and its sum of square is 5,000 and median is 15. Find its…

A:

Q: 승x, FX=0,2, 4 P(X) =- 0, if X = 1, 3 what is the value of P(x>2)?

A: Given: PX=16X,              x=0,2,4=0,     if x=1,3

Q: 4. If the data are modified through the equation: Y=0.3X +20, if the mean of the data after…

A: We have to find mean before modification...

Q: (b) For a set of 100 observations, the sum of deviations from 4 is -11, and the sum of the squares…

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Q: o:11. The sum of 50 observations is 500 and the sum of their squares is 6,000 and median is 12.…

A: Coefficient of variation=CV=σ/mean  Cofficient of skewness=3(Mean-median)/sd .

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Q: We can eliminate some outller problems by using O a. Coefficient of variation O b. Interquartile…

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Q: The mean of data set A is 42. The mean of data set B is 47. The mean absolute deviation (MAD) of…

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Q: IF the mean of the values 50, X, 55, 35, 15, 25 is 40, then the value of x must be........

A: From the provided information, The mean of the data set is 40. The data values are 50, x, 55, 35,…

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Q: If CV for an English Test is 62.5% and the CV for a History test is 62.5% , Compare the variation of…

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Q: what’s the median X if one side of a triangle is 30.5 with one part of that side being 4.5

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Q: In a construction company, there are three groups of engineers: civil, electrical and mechanical…

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Q: The proportion of variation explained is 0.3. If SSY is 20, what is SSY'?

A:

Q: If the data are modified through the equation : Y = 0.5X - 20 , if the mean of the data after…

A: