Question

finding mean median and mode on opening and closing share prices of 3 different companies for 7 days​

Answer 1

For example, take this list of numbers: 10, 10, 20, 40, 70.

The mean (informally, the “average“) is found by adding all of the numbers together and dividing by the number of items in the set: 10 + 10 + 20 + 40 + 70 / 5 = 30.

The median is found by ordering the set from lowest to highest and finding the exact middle.