Can box plot show bimodal?

A: Box plot for a sample from a random variable that follows a mixture of two normal distributions. The bimodality is not visible in this graph.

Can a normal distribution be bimodal?

A mixture of two normal distributions with equal standard deviations is bimodal only if their means differ by at least twice the common standard deviation.

What does bimodal data mean?

two modes
A data set is bimodal if it has two modes. This means that there is not a single data value that occurs with the highest frequency. Instead, there are two data values that tie for having the highest frequency.

How do you interpret multiple boxplots?

The median (middle quartile) marks the mid-point of the data and is shown by the line that divides the box into two parts. Half the scores are greater than or equal to this value and half are less. The middle “box” represents the middle 50% of scores for the group.

How do you make a boxplot with two sets of data in R?

  1. If you’d like to compare two sets of data, enter each set separately, then enter them individually into the boxplot command. x=c(1,2,3,3,4,5,5,7,9,9,15,25) y=c(5,6,7,7,8,10,1,1,15,23,44,76) boxplot(x,y)
  2. You can easily compare three sets of data.
  3. You can use the argument horizontal=TRUE to lay them out horizontally.

How do you interpret multiple Boxplots?

How do you analyze a Boxplot?

  1. Step 1: Assess the key characteristics. Examine the center and spread of the distribution.
  2. Step 2: Look for indicators of nonnormal or unusual data. Skewed data indicate that data may be nonnormal.
  3. Step 3: Assess and compare groups. If your boxplot has groups, assess and compare the center and spread of groups.

How do I know if my data is bimodal?

A data set is bimodal if it has two modes….Example of a Bimodal Data Set

  1. occurs in the set three times.
  2. occurs in the set four times.
  3. occurs in the set one time.
  4. occurs in the set one time.
  5. occurs in the set two times.
  6. occurs in the set three times.
  7. occurs in the set three times.
  8. occurs in the set one time.