Khan Academy Wiki
Z-scores 1
Z scores 1 256
Description
Exercise Name: Z-scores 1
Math Missions: High school statistics and probability Math Mission
Types of Problems: 1

The Z-scores 1 exercise appears under the High school statistics and probability Math Mission. This exercise calculates z-scores.

Types of Problems[]

There is one type of problem in this exercise:

  1. Find the z-score: This problem provides a mean and a standard deviation. The user is asked to find the z-score for a particular value.
    Zscore1-1

    Find the z-score

Strategies[]

This exercise is easy to get accuracy badges because the calculation for z-score is straightforward and it is the only calculation needed. Speed badges are also easy because the calculation is only two steps.

  1. The formula to find the z-score is to take the value and calculate

Real-life Applications[]

  1. Data and statistics appear in news reports and in the media every day.
  2. Many of the problems in this exercise could be viewed as real-life applications.
  3. Statistics can be seen more frequently than calculus in everyday life.
  4. A boxplot is useful for dividing data into manageable quarters.