Set, Relation and FunctionHard
Question
The mean of the data set comprising of 16 observations is 16. If one of the observation valued 16 is deleted and three new observations valued 3, 4 and 5 are added to the data, then the mean of the resultant data, is :
Options
A.15.8
B.14.0
C.16.8
D.16.0
Solution
∑xi = 256
Let new observations Xi
∑Xi = (256 - 16) + (3 + 4 + 5) = 252
& number of observations 18
∴ New mean =
= 14
Let new observations Xi
∑Xi = (256 - 16) + (3 + 4 + 5) = 252
& number of observations 18
∴ New mean =
= 14Create a free account to view solution
View Solution FreeMore Set, Relation and Function Questions
Given ∫ dx = C(where C is integration constant). If k1, k2 are two values of k satisfying above relation, where k1...The relation R = {(1, 1), (2, 2), (3, 3), (1, 2), (2, 3), (1, 3)} on the set A = {1, 2, 3} is -...Let ƒ(x) = for all for x ∈ and and g(x) = sin x for all x ∈ Let (ƒog)(x) denotes ƒ(g(x)) and ...Let S be a non-empty subset of R. Consider the following statement: P: There is a rational number x ∈ S such that ...If f is a real-valued differentiable function satisfying |f(x) – f(y)| ≤ (x - y)2, x, y ∈ R and f(0) = 0, ...