| 2024-06-27 | An observer on the top of a tree, finds the angle of depression of a car moving towards the tree.... |
| 2024-06-27 | The mean and variance of 7 observations are 8 and 16 respectively. If one observation 14 is omit.... |
| 2024-06-27 | A house of height 100 metres subtends a right angle at the window of an opposite house. If the h.... |
| 2024-06-27 | A vertical pole consists of two parts, the lower part being one third of the whole. At a point i.... |
| 2024-06-27 | From a 60 meter high tower angles of depression of the top and bottom of a house are α and.... |
| 2024-06-27 | In the frequency distribution of the discrete data given below, the frequency \(k\) against valu.... |
| 2024-06-27 | The variance of first \(n\) natural numbers is 10 then \(n\) is .... |
| 2024-06-27 | A person standing on the bank of a river observes that the angle subtended by a tree on the oppo.... |
| 2024-06-27 | The mean and Standard deviation of the marks of 200 candidates were found to be 40 and 15 respec.... |
| 2024-06-27 | The mean of \(n\) items is \(\bar{x}\). If each item is successively increased by \(3,3^2, 3^3, .... |
| 2024-06-27 | If mean of \(n\) item is \(\bar{x}\). If each \(r^{\text {th }}\) item is increased by \(2 r\). .... |
| 2024-06-27 | The mean weight of 9 items is 15 . If one more item is added to the series, the mean becomes 16 .... |
| 2024-06-27 | The mean of 100 items is 50 and their Standard deviation is 4, the sum of all the items and also.... |
| 2024-06-27 | The scores of a batsman in ten innings are: \(38,70,48,34,42\), \(55,63,46,54,44\), then mean de.... |
| 2024-06-27 | Let \(\sigma\) be the standard deviation of \(n\) observations. Each of the \(n\) observations i.... |
| 2024-06-27 | The \(A . M\). of the series \(1,2,4,8,16, \ldots, 2^n\) is: .... |
| 2024-06-27 | For the ellipse 2x2-2xy+4y2-(3+2)=0 ..... |
| 2024-06-27 | Mean of the first \(n\) terms of the A.P. \(a+(a+d)+\) \((a+2 d)+\ldots\) is .... |
| 2024-06-27 | If the mean of \(n\) observations \(1^2, 2^2, 3^2, \ldots, n^2\) is \(\frac{46 n}{11}\), then \(.... |
| 2024-06-27 | Find the mean deviation about the mean for the data:\[4,7,8,9,10,12,13,17\].... |
| 2024-06-27 | If mode of a series exceeds its mean by 12 , then mode exceeds the median by .... |
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