For two data sets each of size is 5 , the variances
\( \mathrm{P}^{... VIDEO
For two data sets each of size is 5 , the variances
\( \mathrm{P}^{13: 4} \) are given to be 4 and 5 and the corresponding
W. means are given to be 2 and 4 respectively, then the variance of the combined data set is:
(1) \( \frac{5}{2} \)
(2) \( \frac{11}{2} \)
(3) 6
(4) \( \frac{13}{2} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2023-04-07 If \( \mathrm{x}_{1}, \mathrm{x}_{2}, \ldots, \mathrm{x}_{\mathrm{n... 2023-04-07 If the variance of the terms in an increasing A.P., \( b_{1} \),
\(... 2023-04-07 Consider three observations \( \mathrm{a}, \mathrm{b} \) and \( \ma... 2023-04-07 If the variance of the first \( \mathrm{n} \) natural numbers is 10... 2023-04-07 The mean and variance of 20 observations are found
\( \mathrm{P}^{1... 2023-04-07 If mean and standard deviation of 5 observations \( x_{1} \),
\( \m... 2023-04-07 The mean of 6 distinct observations is 6.5 and their
\( \mathrm{P} ... 2023-04-07 In an experiment with 15 observations on \( \mathrm{x} \), then
\( ... 2023-04-07 If both the mean and the standard deviation of 50
\( \mathrm{P}^{\p... 2023-04-07 Given that variance of 18 observations is 50 . If each
\( P^{12} \)... 2023-04-07 For two data sets each of size is 5 , the variances
\( \mathrm{P}^{... 2023-04-07 The variance of 20 observations is 5 . If each
\( \mathrm{P} \) obs... 2023-04-07 Suppose a population A has 100 observations 101,
\( \mathrm{P}^{\ma... 2023-04-07 The mean and variance of 6 observations are 5 and 7
\( \mathrm{P}^{... 2023-04-07 The median and standard deviation (S.D.) of a
\( \mathrm{P} \) dist... 2023-04-07 If standard deviation of variate \( x_{i} \) is 10 , then
\( P^{15:... 2023-04-07 If the standard deviation of a variable \( X \) is \( \sigma \), th... 2023-04-07 A student scores the following marks in five tests: 45 ,
\( \mathrm... 2023-04-07 If the standard deviation of the numbers
\( \mathrm{P}^{\mathrm{n}}... 2023-04-07 The mean and variance of seven observations are 8 and 16 , respecti... 2023-04-07 A data consists of \( \mathrm{n} \) observations: \( \mathrm{x}_{1}...