CS 110 Lecture Notes - Lecture 5: Confidence Interval, Standard Deviation
Document Summary
The trainings are starting to introduce basic formulas and functions. We"re also starting to look at the statistical analysis part of the class. We noticed about half the class is struggling with basic formulas. If a city has 20% growth per year: For 2014, that number is equal to: (4,000 * 20%) = 800 + 4,000. Let"s look at the action of copy and paste. When a relative address is copied and pasted. This allows the same formula to be used. When an absolute address is copied and pasted. This allows constants or parameters to be used. Ratio- a relationship between two numbers of the same kind. The ratio of bananas to apples is 1:4. The ratio of children to couples is 2. 3:1. If we want to know the ratios of cars to people. If the ratio of bananas to apples in a delivery is 4:1. The sum of the values divided by the number of values.
