Tales by Dots and LinesClass 8 Mathematics MCQs

In a spreadsheet, what formula would correctly calculate the sum of the numbers in the cell range from D2 to D6?

If a new value, which is greater than the original mean, is added to a data collection, what is the effect on the new mean?

According to the 'Annual number of objects launched into space' graph, the number of worldwide launches approximately doubled between which two consecutive years?