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Reshma’s rank is 8th from front. This means, seven students are ahead her and since total number of students = 17, 9 students are behind her. Now, Ram’s rank is 8th from the front among boys but since 8th in line is Reshma, Ram must be somewhere after Reshma in line. Number of students between Reshma and Ram = 6 (4 Boys and 2 girls). Thus, 8 students till Reshma (including Reshma) + 6 students = 14 students ahead of Ram. Thus, Ram’s rank is 15th from front. Between Reshma and Ram , number of boys = 4 Also, Ram is 8th among boys. Thus, total 7 boys are there in line till Ram, excluding Ram. 4 are between Reshma and Ram, thus remaining 3 are ahead of Reshma. Out of total 7 students ahead of Reshma, 3 are boys, thus 4 are girls. Hence, Reshma is 5th girl from front.
For the price -quantity chart
At a round table, n persons are seated on n chairs. The probability that two friends from same college are sitting next to each other, is:
Which of the following correctly completes the given statement?
Index number helps in:
(I) determining the cost of living
The sample sizes for two cases were 15 each with means as 104 and 114 respectively and variances as 200 and 510 respectively.
The limits of multiple correlation coefficient R1.23 are:
The grouped data for the observations are
Class: 1-3 3-5 5-7
For making frequency distribution, the number of classes used depends upon:
Which of the following is the most relevant for deriving a point estimate?
The standard error of the given data 15, 5, 12, 10, 20, 4 is
