3Nlustration 56. Calculate the median from the following data, if the mean value is 45. Marks No. of Students Marks No. of Students 70-80 10 30-40 12 60-70 10 20-30 7 50-60 20 10-20 8- 40-50 ? 0-10 5

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A: bag (1):no.of white balls=6no.of black balls=4Total no.of balls=10bag (2): no.of white balls=4no.of ...

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Q: Obtain the median for the following frequency distribu- tion : x : 1 2 3 4 5 6 7 8 f: 8 11 16 20 25 ...

A: X Frequency 1 8 2 10 3 11 4 16 5 20 6 25 7 15 8 9 9 6  

Q: 11. For a population u = 48 and o = 8, find the x value that corresponds to each of the following z ...

A: We have given that.   X~N( μ , ?^2 )   μ =48 , ? =8   Z-score =( x - μ )/?

Q: For a distribution the first four moments about zero are 1, 7, 38 and 155 respectively (1) Compute t...

A: Let μi' denote the ith order raw moment. Given,  μi' = 1, μ21 = 7, μ3' = 38 and μ4' = 155          

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Q: A population has a mean μ=81 and a standard deviation σ=6. Find the mean and standard deviation of...

A: From the provided information, Mean (µ) = 81 Standard deviation (σ) = 6 X~N (81, 6)

Q: The following C.I.s were obtained for the mean of the same population [16, 23] and [18, 25]. Identif...

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Q: Scores 30-34 6. 35-39 16 40-44 15 45-49 12 50-54 4

A: We know that  Mean = sum of all observations/total number of observations 

Q: Example 9. Find the mean deviation from the median for the follow ing frequency distribution :

A: Here given grouped data of marks and no.of students 

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A: Given information: CA=μ11+μ12-μ21-μ222

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Q: Complete the following probability distribution table: P(X) -25 0.2 -15 0.15 13 0.15 18 37 0.12 90 0...

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Q: The sample type can best be described as: | 1.833 The critical value to Independent Samples be used:...

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Q: In a certain examination, the average grade of all students in class A is 68.4 and that of all stude...

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Q: a. C. Find the standard deviation. Round your answer to 2 decimal places. b. d. Find the probability...

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A: Given : A P-Value : It is used mostly used in test of hypothesis for making decision      

Q: In a certain examination, the average grade of all 5 68.4 and that of all students in class B is 71....

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