If the standard deviation of the numbers \( -1,0,1, k \) is
\( \mat...
If the standard deviation of the numbers \( -1,0,1, k \) is
\( \mathrm{P} \) \( \sqrt{5} \) where \( k0 \), then \( k \) is equal to
W
(1) \( 2 \sqrt{\frac{10}{3}} \)
(2) \( 2 \sqrt{6} \)
(3) \( 4 \sqrt{\frac{5}{3}} \)
(4) \( \sqrt{6} \)
๐ฒPW App Link - https://bit.ly/YTAI_PWAP
๐PW Website - https://www.pw.live
Other Videos By PW Solutions
| 2023-04-07 | The AM of the series \( 1,2,4,8,16, \ldots ., 2^{n} \) is
\( \mathr... |
| 2023-04-07 | The mode of the series \( 3,4,2,6,1,7,6,7,6,8,9,5 \) is
P
(1) 5
(2)... |
| 2023-04-07 | If \( 25 \% \) of the observations in a frequency
P distribution ar... |
| 2023-04-07 | The mean weight of 9 items is 15 . If one more item
\( \mathrm{P} \... |
| 2023-04-07 | The SD of 15 items is 6 and if each item is
P decreases by 1 , then... |
| 2023-04-07 | The mean deviation from the mean of the set of
\( \mathrm{P} \) obs... |
| 2023-04-07 | The mean of the data set comprising of 16
P observations is 16 . If... |
| 2023-04-07 | The median of 100 observations grouped in classes
\( \mathrm{P} \) ... |
| 2023-04-07 | The average of \( n \) numbers \( x_{1}, x_{2}, \ldots, x_{n} \) is... |
| 2023-04-07 | If mean and standard deviation of 5 observations \( x_{1} \),
\( \m... |
| 2023-04-07 | If the standard deviation of the numbers \( -1,0,1, k \) is
\( \mat... |
| 2023-04-07 | The mean and variance of seven observations are 8
\( \mathrm{P} \) ... |
| 2023-04-07 | If the arithmetic mean of the following data is 7 ,
P then \( a+b= ... |
| 2023-04-07 | If \( \sum_{i=1}^{9}\left(x_{i}-5\right)=9 \) and \( \sum_{i=1}^{9}... |
| 2023-04-07 | A student scores the following marks in five tests:
\( \mathrm{P} \... |
| 2023-04-07 | A data consists of \( n \) observations: \( x_{1}, x_{2} \ldots x_{... |
| 2023-04-07 | The median of the data \( 5,6,7,8,9,10 \), is
\( \mathrm{P} \)
(1) ... |
| 2023-04-07 | 5 students of a class have an average height \( 150 \mathrm{~cm} \)... |
| 2023-04-07 | The mean of 16 observations is 16 . If one
P observation 16 is dele... |
| 2023-04-07 | The mean of five observations is 5 and their
\( \mathrm{P} \) varia... |
| 2023-04-07 | If the sum of the deviations of 50 observations from
\( \mathrm{P} ... |
0