If the standard deviation of ' \( n \) ' observations \( x_{1}, x_{2}, \ldots \), \( x_{n} \) is.... VIDEO
If the standard deviation of ' \( n \) ' observations \( x_{1}, x_{2}, \ldots \), \( x_{n} \) is ' 4 ' and another set of observations \( y_{1}, y_{2}, \ldots, y_{n} \)https://bit.ly/YTAI_PWAP https://www.pw.live
Other Videos By PW Solutions 2024-01-23 Let \( x_{1}, x_{2}, \ldots, x_{n} \) be ' \( n \) ' observations. Let \( w_{i}=l x_{i}+k \)
for.... 2024-01-23 Consider the following distribution:
\begin{tabular}{|l|l|l|l|l|l|}
\hline Size \( \left(x_{i}\r.... 2024-01-23 Let \( r \) be the range and \( S^{2}=\frac{1}{n-1} \sum\left(x_{i}-\bar{x}_{i}\right)^{2} \).
I.... 2024-01-23 The mean and median of the following number in
increasing order
\( 3,4,6, x, 10, y \) are ' 7 ' .... 2024-01-23 The mean of five observations is 4 and their
variance is 5.2. If three of these observations are.... 2024-01-23 Find the mode of given data:
\( 6,3,7,5,6,7,8,9,10,7,5,6,3,7,2,6,1,6,5,7,8 \), 7, 6.... 2024-01-23 If a variable takes values \( 0,1,2, \ldots, n \) with frequencies proportional to \( q^{n},{ }^.... 2024-01-23 The mean marks of 120 students is 20 . If was later discovered that two marks were wrongly taken.... 2024-01-23 Find the median of the given data:
\( 10,3,7,11,14,6,5,12 \).... 2024-01-23 The mean and standard deviation of a sample of size 10 were found to be 9.5 and 2.5 respectively.... 2024-01-23 If the standard deviation of ' \( n \) ' observations \( x_{1}, x_{2}, \ldots \), \( x_{n} \) is.... 2024-01-23 A sample of 90 values has mean 55 and standard deviation 3. A second sample of 110 values has me.... 2024-01-23 The standard deviation is not affected by the change of.... 2024-01-23 If standard deviation of a set of observation is 8 and if each observation is divided by ' -2 ' .... 2024-01-23 If the standard deviation of a set of observations is 4 and if each observation is divided by 4 .... 2024-01-23 The standard deviation of data given by
\( \begin{array}{lllllll}\text { Variate }(x) & 0 & 1 & .... 2024-01-23 The average salary of male employees in a firm was Rs 5200 and that of females was 4200 . The me.... 2024-01-23 The mean height of 25 male workers in a factory is \( 161 \mathrm{cms} \), the mean height of 35.... 2024-01-23 The mean weight of 9 items is 15 . If one more item is added to the series the mean becomes 16 ..... 2024-01-23 The arithmetic mean of \( a, a+d, a+2 d \ldots, a+2 n d \) is.... 2024-01-23 The arithmetic mean of the series \( 1,2,2^{2}, \ldots ., 2^{n-1} \) is....
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