Read the summary and the most important questions on EMBA: DATA AND DECISIONS

• 1 ONE-VARIABLE STATISTICS

  This is a preview. There are 1 more flashcards available for chapter 1
  Show more cards here

• 1.1 Chapter 1: Measuring the Center

  This is a preview. There are 4 more flashcards available for chapter 1.1
  Show more cards here

• True or False. Outliers have values that are significantly higher or lower than the other numbers in a data set.

  True

• 1.1.1 Measuring Central Tendency: Mean, Median, and Mode

  This is a preview. There are 5 more flashcards available for chapter 1.1.1
  Show more cards here

• True or False. Median is the "middle" of the set. If there is an even number, get the median of both the middle numbers.

  True

• What is bimodal and multimodal?

  Bimodal is 2 modes, and multimodal is 3 modes or more, in a set.

• True or False. If outliers present Median better represents the center of the data than the mean.

  True

• 1.1.2 Standard Deviation

  This is a preview. There are 1 more flashcards available for chapter 1.1.2
  Show more cards here

• True or false. Standard deviation can be considered before and after the mean value i.e. Mean of 50u and standard deviation of 20u, it is between 30 and 70u.

  True

• True or false. The standard deviation gives a rough idea of where most of the data in a set falls in relation to the mean.

  True

• True or False. If we want to know how the data values vary from the mean, we need to find the standard deviation.

  True

• 1.1.3 Five Number Summary

  This is a preview. There are 3 more flashcards available for chapter 1.1.3
  Show more cards here

• True or false. The five number summary not only describes the center of a data set, but also how it spreads out from the median.

  True

• What is the 1st step in computing the five-number summary?

  Arrange the data in numerical order

• True or False. We need to ignore the median of the entire data set when identifying medians of the lower and upper halves.

  True