| 2024-05-12 | The mean and variance of the data \(4,5,6,6,7,8, x, y\), where \(x<y\), are 6 and \(\frac{9}{.... |
| 2024-05-12 | If the variance of the following frequency distribution:
is 50 , then \(x\) is equal to .....&n.... |
| 2024-05-12 | Consider the data on \(x\) taking the values \(0,2,4,8, \ldots, 2^n\) with frequencies \({ }^n C.... |
| 2024-05-12 | For the frequency distribution:Variate \((x): x_1 x_2 x_3 \ldots x_{15}\)Frequency \((f): f_1 f_.... |
| 2024-05-12 | Consider three observations \(a, b\) and \(c\) such that \(b=a+c\). If the standard deviation of.... |
| 2024-05-12 | The sum of squares of deviations for 10 observations taken from mean 50 is 250 . The coefficient.... |
| 2024-05-12 | Let the mean of the data
be 5. If\(m\) and \(\sigma^2\) are respectively the mean deviation abou.... |
| 2024-05-12 | The mean and the median of the following ten numbers in increasing order \(10,22,26,29,34, x, 42.... |
| 2024-05-12 | Consider the following frequency distribution:
If the sum of all frequencies is 584 and median .... |
| 2024-05-12 | Let \(x_1, x_2, x_3, \ldots ., x_{20}\) be in geometric progression with \(x_1=3\) and the commo.... |
| 2024-05-12 | If the maximum distance of normal to the ellipse x24+y2b2=1,b<2,from the origin is 1, then t.... |
| 2024-05-12 | If the mean deviation of number \(1,1+d, 1+2 d, \ldots\), \(1+100 d\) from their mean is 255 , t.... |
| 2024-05-12 | The algebraic sum of the deviation of 20 observations measured from 30 is 2 . Then, if mean of o.... |
| 2024-05-12 | The mean age of 25 teachers in a school is 40 years. A teacher retires at the age of 60 years an.... |
| 2024-05-12 | The mean of 30 given numbers, when it is given that the mean of 10 of them is 12 and the mean of.... |
| 2024-05-12 | The means and variance of \(n\) observations \(x_1, x_2, x_3, \ldots x_n\) are 5 and 0 respectiv.... |
| 2024-05-12 | A group of 10 items has arithmetic mean 6. If the arithmetic mean of 4 of these items is 7.5 , t.... |
| 2024-05-12 | Median of \({ }^{2 n} C_0,{ }^{2 n} C_1,{ }^{2 n} C_2,{ }^{2 n} C_3, \ldots,{ }^{2 n} C_n\) (whe.... |
| 2024-05-12 | In an experiment with 15 observations on \(x\), the following results were available\[\sum x^2=2.... |
| 2024-05-12 | In a series of \(2 n\) observations, half of them equal \(a\) and remaining half equal \(-a\). I.... |
| 2024-05-12 | A sample of 35 observations has the mean 80 and Standard deviation as 4 . A second sample of 65 .... |
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