Nayab hisabnish class-3 bharti 2022 | GPSSB recruitment of deputy accountant | પંચાયત વિભાગ ભરતી

For 50 students of a class, the regression equation of marks in Statistics(X) on the marks in accountancy(Y) is 3y-5x+180 =0 .The mean marks in accountancy is 44 and the variance of marks in Statistics is (9/16)th of variance of marks in Accountancy .Find the mean marks in Statistics and the correlation coefficient between the marks of the two subjects.

Following are the marks obtained by a batch of 10 students in a certain class test in Statistics (X) and Accountancy (Y) : {:("Roll Number",1,2,3,4,5,6,7,8,9,10),("Statistics (X)",63,64,62,32,30,60,47,46,35,28),("Accountancy(Y)",68,66,35,42,26,85,44,80,33,72):} In which subject is level of Knowledge of students higher ?

For recruiting Management Trainees in an organisation, thefollowingcriteriahavebeenlaiddown. The candidate must: (A) be a first class graduate in Commerce with at least 65% marks. (B) have secured at least 70% marks in SSC. (C) be not more than 26 years and not less than 21 years of age as on 1.8.2007. (D) have secured at least 60% marks in selection test. (E) have secured at least 50% marks in selection interview. However, if a candidate fulfils all the above mentioned criteria EXCEPT- (i) at (A) above but is an Economics graduate with at least 70% marks, the case may be referred to the GM of the organisation. (ii) at (E) above but has secured at least 40% marks in selection interview and at least70% marksin selection test, the case may be referred to the President of the organisation. In each of the questions below, information of one candidate is given. You have to take one of the following five dedsions based on the information provided and the criteria and conditions given above. You are not to assume any thing other than the information provided in each question. All these cases are given to you as on 1.08.2007. You have to indicate your dedsion by marking answers to each question as follows: Rashmi is B.Com is first class with 62% marks and M.Com also in first class with 67% marks. Her marks in SSC were 85%. She completed 24 years of age on 3rd October 2006. She has scored 66% marks in selection test and 56% marks in interview.