Tales by Dots and LinesClass 8 Mathematics Assertion & Reason Questions

Assertion (A): If the mean of the data set {5, 7, 9} is 7, then adding the value 11 to the set will increase its mean.

Reason (R): When a new value greater than the original mean is included in a data set, the new mean increases.

Assertion (A): The median of the data set {8, 3, 10, 13, 4, 6, 7} is 7.

Reason (R): The median is the middle value when the data is sorted in ascending or descending order.

Assertion (A): If the mean of a data set is 25, and every value in the collection is increased by 10, the new mean will be 35.

Reason (R): If a constant 'k' is added to every value in a collection, the new mean is the original mean plus 'k'.