Consider the following frequency distribution: | Value | 4 | 5 | 8 | 9 | 6 | 12 | 11…

MATHEMATICS · Single correct · CBSE · Mathematics · Statistics · Statistics

Problem

Consider the following frequency distribution:
Value458961211
Frequency5f1f_1f2f_22113
Suppose that the sum of the frequencies is 19 and the median of this frequency distribution is 6. For the given frequency distribution, let α\alpha denote the mean deviation about the mean, β\beta denote the mean deviation about the median, and σ2\sigma^2 denote the variance. Match each entry in List-I to the correct entry in List-II and choose the correct option. List-I and List-II
List-IList-II
(P) 7f1+9f27f_1 + 9f_2 is equal to(1) 146
(Q) 19α19\alpha is equal to(2) 47
(R) 19β19\beta is equal to(3) 48
(S) 19σ219\sigma^2 is equal to(4) 145
(5) 55
(A) (P) →\rightarrow (5), (Q) →\rightarrow (3), (R) →\rightarrow (2), (S) →\rightarrow (4) (B) (P) →\rightarrow (5), (Q) →\rightarrow (2), (R) →\rightarrow (3), (S) →\rightarrow (1) (C) (P) →\rightarrow (5), (Q) →\rightarrow (3), (R) →\rightarrow (2), (S) →\rightarrow (1) (D) (P) →\rightarrow (3), (Q) →\rightarrow (2), (R) →\rightarrow (5), (S) →\rightarrow (4)

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