For two data sets, each of size 5, the variances are given to be 4 and 5 and the…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
For two data sets, each of size 5, the variances are given to be 4 and 5 and the corresponding means are given to be 2 and 4, respectively. The variance of the combined data set is
- \(\frac{5}{2}\)
- \(\frac{11}{2}\)
- 6
- \(\frac{13}{2}\)
Answer
(D) 13 2
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