Question

the dot plot shows how much hairdressers in margots area charge for a womans haircut. the least expensive cut is $25. margot described the data as having a spread from $25 to $47, seven gaps, a cluster from $35 to $37, and a center of $37. where did margot make an error?
price of a womans haircut (in dollars)
the spread is from $25 to $46.
there are 11 gaps.
the cluster is from $36 to $37.
the center is at $36.

Explanation:

Step1: Find the maximum value

By observing the dot - plot, the maximum value is $46$. So the spread is from $25$ to $46$, not $25$ to $47$.

Step2: Count the gaps

Count the number of values with no dots between non - empty values. There are 11 gaps.

Step3: Identify the cluster

The cluster is from $36$ to $37$ as there are a large number of dots in that range.

Step4: Find the center

By looking at the distribution, the center is around $36$.

Answer:

The spread is from $25$ to $46$.