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Regression
Maths & Stats
answered on 12-Jul-21 12:27
Pls explain how we've got 74 and 76 by referring the image
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Ok. Thank you
Sibi Srinivasan
CA Final
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5
655
Logarithm
Maths & Stats
answered on 11-Jul-21 20:09
Log(1^3+2^3+3^3....... n^3)
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2log(nÃ?(n+1)/2) Use sum of cubes of first n natural numbers formula u will get the answer
Yaswini Nithyanantham
CA Inter
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558
Logarithm
Maths & Stats
answered on 11-Jul-21 20:10
log (1^3 + 2^3 + 3^3 + ---n^3) = ?
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2 log(n(n+1)/2) Use sum of cubes of first n natural numbers formula
Priya Anandan
CA Inter
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1
598
Correlation
Maths & Stats
answered on 11-Jul-21 17:33
Pls explain the marked statement in the image.
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It's a generalisation of how many conditional distributions would be there from bivariate frequency distribution. Considering the same example as given, we shall have 5 + 5 = 10 conditional distribution of students such as : 1. Conditional Distribution of Marks in Statistics for Students having Mathematics Marks between 0 - 4 2. Conditional Distribution of Marks in Statistics for Students having Mathematics Marks between 4 - 8 ... .... 6. Conditional Distribution of Marks in Maths for Students having Statistics Marks between 0 - 4 7. Conditional Distribution of Marks in Maths for Students having Statistics Marks between 4 - 8 ... ...
Sibi Srinivasan
CA Final
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1
726
Probability
Maths & Stats
answered on 20-Aug-21 11:00
Sir how to do this sum? If P (A) = p and P (B) = q, then (a) P(A/B) â?¤ p/q (b) P(A/B)â?¤ p/q (c) P(A/B) < q/p (d) None of these
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Please refer attached for detailed solution. Also, please post new question as a new topic. Thanks, best wishes!
Priyanka K
CA Final
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7
713
Theoretical distributions
Maths & Stats
answered on 09-Jul-21 11:14
Please refer the image and explain the step that I've marked.
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The step is derived from the formula which is mentioned on the right hand side
Sibi Srinivasan
CA Final
★ 22K+
1
612
Measures of central tendency
Maths & Stats
answered on 19-Jul-21 14:06
Sir can you please explain the following terms and how mean, median and mode gets affected in each distribution? There are some questions based on these terms in additional bank. The terms are: Symmetrical distribution Moderately asymmetric distribution Probable error of standard deviation
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Thank you sir
Priyanka K
CA Final
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6
862
Permutations & Combinations
Maths & Stats
answered on 09-Jul-21 13:04
can anyone help me with this question with the working?
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Thank you sir!!
Priyanka K
CA Final
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664
Sets
Maths & Stats
answered on 07-Jul-21 15:30
Can any one answer this question with explanation
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Pfa
Aakash Raavi
CMA Inter
★ 320
1
558
Regression
Maths & Stats
answered on 07-Jul-21 11:36
Can any one solve this question with clear explanation ?
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Regression coefficient of y on x = k Similarly regression coefficient of x on y = 4 We know, when we multiply these 2 coefficients, we get r^2 which implies r^2 = 4k. Value of r lies between -1 to 1, including nos. So, 0 </ =(r^2) </= 1, implies 0 </= (4k) </= 1 or 0 </= k </= (1/4)
Aakash Raavi
CMA Inter
★ 320
1
612