Measures of Dispersion  Solve for the range, variance, and standard deviation of this data: 40, 34, 50, 46, 47, 39.   Score (X) (x – mean) (x – mean)2 40     34     50     46     47

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Q: Question 2 Given the data as in Table 2. x y 2 2.757 Table 2 3 7 3.279 6.009 9 9.751 12 12.906 15…

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Q: mean =6.4 ppm Variance = 0-25 ニ of Sig

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Q: =9, median =13, standard deviation -5 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, Mean (x¯) = 9 Median = 13 Standard deviation(s) = 5

Q: Please help me to get the following:  p20, d2, q2, grouped mean, median, mode

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Q: The difference between means after adding 10 more participants is:                 Mean with 10…

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A: Solution:- From given information sample mean x¯1=18x¯2=24standard deviationσ1=σ2=3sample size…

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Q: QI/ For the following data find: a. Mean b. Harmonic mean c. Absolute mean deviation Class Frequency…

A: Here, Interval Frequency, f Midpoint, x fx fx x-x |x-x| f.|x-x| 25-30 2 27.5 55 0.072727 -17.19…

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A: Denote the random variable X as the duration. Thus, X~ N (µ=16, σ=3.2).

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Q: Does the data follow standard normal? Suppose the data size is 100. Then, we know, in the interval…

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Q: Which of the two variables, the time spent by male children or the time spent by female children,…

A: We know that, the Standard Deviation is one of the type of measure of dispersion. So, we can compare…

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Q: Z-scores X (test scores) = 3, 5, 8, 8, 9, 4, 7, 8, 6, 7, 10 %3D •Calculate the mean of x •Calculate…

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Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A: Tax rate Freq(f) x xf x^2 x^2*f 0.00 - 0.49 7 0.245 1.715 0.060025 0.420175 0.5 - 0.99 12 0.745…

Q: 4. Calculate the variance and standard deviation for the students score data. Score 10-14 15-19…

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Q: A sample of size 26 was gathered from high school seniors to estimate how many intended to attend…

A: GIven data,n=26p=0.65

Q: c) Determine the correlation coefficient between the variables Fat and Weight. d) Using the result…

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Q: A population has a mean u = 81 and a standard deviation o 36. Find the mean and standard deviation…

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Q: 18. Calculate the variance and standard deviation for the monthly income of 50 employees in a firm.…

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Q: 1. The following table gives the protein intake of 400 intake of 400 families. Find the Range…

A: Given that: Class Frequency 15 - 25 30 25 - 35 40 35 - 45 100 45 - 55 110 55 - 65 80…