Wednesday 2 September 2020

Maths | Statistical Investigation

Time is the ongoing sequence of events happening.

The median is found by organizing a range of numbers from least to greastest and finding the number in the middle. However, if there is more than one middle number, the two numbers are added and then divided by 2. For example: 2, 3, 4, 4, 5. The median is four.

The mean is found by adding a range of numbers together and dividing the total by how many numbers there were originally. For example: 4+6+5= 15. 15 divided by 3 is 5. The mean is five.

The mode is found by organizing a range of numbers from least to greatest and finding the most popular number (the number that appears the most). For example: 3, 4, 5, 5, 6. The mode is five because five appears the most in the number pattern.

The statistical investigation below shows that five people tested out measuring time by skipping. They measured how long it would take to skip 50 times, 5 times each. After they measured the length of their activity, they converted their times into a mean. They also found the median and mode for all times.

LI: to investigate units of time.

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