Question

data analysis and probability
identifying peaks, symmetry, gaps, and clusters in a dot plot (line plot)
weight of seashells (in ounces)
(a) answer the questions below.
is there a cluster from 28 to 30?
yes no
is there a gap at 33?
yes no
is the data set symmetric?
yes no

Explanation:

Step1: Determine if there is a cluster from 28 to 30

A cluster is a group of data points that are close together. Looking at the dot - plot, there are multiple dots (data points) for 28, 29, and 30. So, there is a cluster from 28 to 30.

Step2: Determine if there is a gap at 33

A gap is an interval with no data points. At 33, there are data points (dots). So, there is no gap at 33.

Step3: Determine if the data set is symmetric

A symmetric data set has a mirror - image appearance about a central value. The data set here does not have a mirror - image appearance. For example, the left - hand side (values like 25) does not mirror the right - hand side (values like 33) in terms of the number of data points and their distribution. So, the data set is not symmetric.

Answer:

Is there a cluster from 28 to 30? Yes
Is there a gap at 33? No
Is the data set symmetric? No