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Probability

Maths & Stats

answered on 02-May-23 12:20

Explain the question and tell me the answer .

latest answer

Look at the attached explanation. You can calculate the last part of the problem using the calculations sharedv

Vignesh s

CA Foundation

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1

78

Probability

Maths & Stats

answered on 02-May-23 12:25

Explain the question and tell me the answer .

latest answer

Pfa

Vignesh s

CA Foundation

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64

ABC Analysis of Business Mathematics,Logical Reasoning and Statistics (CA foundation)

Maths & Stats

answered on 25-Apr-23 19:08

Please share ABC Analysis of Business Mathematics,Logical Reasoning and Statistics

latest answer

Thank you

Nakshathra Baiju

CA Foundation

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4

112

Ratio and proportion

Maths & Stats

answered on 19-Apr-23 23:41

a bag has 105 coins containing 50 paise and 25 paise coins . the ratio of the number of these coins is 4 : 3 . the total value in the bag is

latest answer

105×4/7=60×0.50 = 30 105×3/7=45×0.25 = 11.25

Vignesh s

CA Foundation

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84

Permutations

Maths & Stats

answered on 18-Apr-23 21:13

In 5th question the module says right answer as A but n is always a positive integer or can it be negative

latest answer

C. Positive integer is correct

SUBODH M JAIN

CA Foundation

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113

Indices

Maths & Stats

answered on 13-Apr-23 19:51

I need the solution to this

latest answer

The answer is (c). Kindly refer to the attached pic for explanation.

TAHERA SAMREEN

CA Foundation

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2

92

Permuntation and combinations

Maths & Stats

answered on 12-Apr-23 14:23

What is the value of 5c5 = ?

latest answer

1

Vignesh s

CA Foundation

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4

161

permuntation and combinations

Maths & Stats

answered on 31-Mar-23 08:16

I have a doubt regarding , in permutation and combinations , questions are given by ICAI Some of the questions they already mentioned about that is permuntation or combination . If it is not mentioned , how to find permuntation questions or combination questions ? Are there any key words or anything to understand , Can anyone explain to me ?

latest answer

If the order doesn't matter then we have a combination, if the order does matter then we have a permutation

Vignesh s

CA Foundation

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134

Bivariate data for non determination

Maths & Stats

answered on 29-Mar-23 12:48

In a bivariate data by = 0.24 and by = 0.58, then the coefficient of non-determination is given by: (a) 0.2 (c) 0.002 (b) 0.02 (d) 0.03

latest answer

The coefficient of non-determination is given by 1-r^2. r will be sqrt of 0.24 x 0.58 And there looks like an error in the given options.

Sai G

CA Final

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101

How to find byx

Maths & Stats

answered on 29-Mar-23 12:54

The following data is given, based on 450 students for marks in Statistics and Economics at a certain examination Mean marks in Statistics =40 Mean marks in Economics =48 S.D. of marks (Statistics) = 12 Variance of marks (Economics) =256 Sum of the products of deviations of marks from their respective mean = 42075. The average marks in Economics of candidates who obtained 50 marks in Statistics is (a) 45 (c)54 (b) 54.5

latest answer

Answer is 54.5. First find correlation coefficient which will come out to be 0.49. Based on this, find regression equation of Y (Marks in Economics) on X (Marks in Statistics). which will be Y = 0.65X +22. Substitute X = 50 and then calculate Y. Try this, if any doubt remains, feel free to mention here.

Sai G

CA Final

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