The mean of 100 observations was calculated as 49. It was later discovered that three observations wrongly taken as 40, 20, and 50 were actually 60, 70, and 80 respectively. The correct mean is:

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?