This chart is used to visualize the FDT when a variable that is being used is an ordinal.1 pointline chartpie charthistogram chart

The correct answer is Line Chart.

Step 1: Understand the question. The question is asking which type of chart is used to visualize the Frequency Distribution Table (FDT) when the variable being used is ordinal.

Step 2: Know what an ordinal variable is. An ordinal variable is a type of categorical variable for which the possible values are ordered.

Step 3: Know what each type of chart is and what it's used for.

• A line chart is a type of chart which displays information as a series of data points called 'markers' connected by straight line segments. It is often used to visualize a trend in data over intervals of time – a time series.

• A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportion.

• A histogram is an accurate representation of the distribution of numerical data. It is an estimate of the probability distribution of a continuous variable.

Step 4: Choose the correct chart. In this case, a line chart is the correct answer because it can show the order of the ordinal variable.