Theme C - Interaction & Interdependence

Insightful COVID-19 Data Evaluation WHO Findings

357 words

2 mins read

Last edited on 14th Jun 2024

Evaluation: An appraisal that assesses the strengths and limitations of evidence.
Example: Data about COVID-19 from the World Health Organization (WHO). Questions to ponder
- How did countries differ in reducing COVID-19 infections?
- Which countries were best at preventing COVID-19 deaths?
- Did a country's wealth affect its success in fighting COVID-19?

Finding Percentages
- Formula percentage$= \frac {first\ number}{second\ number} × 100$
- Real World Example: If 5 students out of a class of 20 got A's, the percentage of students who got A's is $\frac {5}{20}×100$.
Calculating Percentage Change
- Formula: ercentage change$= \frac {final\ number - initial\ number}{initial\ number} ×100$
- Real World Example: If you had $10 and now have $15, the percentage increase is $\frac {15−10}{10}×100$.
Finding Percentage Difference
- Formula (using number A as reference)
- percentage difference=number A - number Bnumber Apercentage difference$= \frac {number A\ - number B}{number A}$
- Remember!: The result can differ if you use number B as reference.
- Real World Example: If one store sells a game for $50 and another for $40, the percentage difference, using the first store as a reference, is $\frac {50-50}{50}×100$.

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Biology HL

357 words

2 mins read

Last edited on 14th Jun 2024

Evaluation: An appraisal that assesses the strengths and limitations of evidence.
Example: Data about COVID-19 from the World Health Organization (WHO). Questions to ponder
- How did countries differ in reducing COVID-19 infections?
- Which countries were best at preventing COVID-19 deaths?
- Did a country's wealth affect its success in fighting COVID-19?

Finding Percentages
- Formula percentage$= \frac {first\ number}{second\ number} × 100$
- Real World Example: If 5 students out of a class of 20 got A's, the percentage of students who got A's is $\frac {5}{20}×100$.
Calculating Percentage Change
- Formula: ercentage change$= \frac {final\ number - initial\ number}{initial\ number} ×100$
- Real World Example: If you had $10 and now have $15, the percentage increase is $\frac {15−10}{10}×100$.
Finding Percentage Difference
- Formula (using number A as reference)
- percentage difference=number A - number Bnumber Apercentage difference$= \frac {number A\ - number B}{number A}$
- Remember!: The result can differ if you use number B as reference.
- Real World Example: If one store sells a game for $50 and another for $40, the percentage difference, using the first store as a reference, is $\frac {50-50}{50}×100$.

Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟