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# Can a histogram have a zero value?

## Can a histogram have a zero value?

There is no space between the columns. If an interval’s count is zero, however, a space (or gap) will appear since the column has a height of zero….

Relative Frequency Table
Interval Count (frequency) Relative frequency
0-10 1 1/17 = 0.06
11-20 0 0/17 = 0
21-30 1 1/17 = 0.06

What does frequency show in a histogram?

A frequency distribution shows how often each different value in a set of data occurs. A histogram is the most commonly used graph to show frequency distributions.

Do frequency histograms have gaps?

A histogram has an appearance similar to a vertical bar chart, but there are no gaps between the bars. Generally, a histogram will have bars of equal width.

### How do you find the frequency?

To calculate frequency, divide the number of times the event occurs by the length of time.

How do you find the frequency of a graph in statistics?

Step 3:Use the formula % = (f / n) × 100 to fill in the next column.

1. n = total amount of items in your data = 20.
2. f = frequency (the number of times the item appears).

How do you read the results of a histogram?

Identify the peaks, which are the tallest clusters of bars. The peaks represent the most common values. Assess the spread of your sample to understand how much your data varies. For example, in the following histogram of customer wait times, the peak of the data occurs at about 6 minutes.

## How do you analyze a histogram?

Analyze the histogram to see whether it represents a normal distribution. Once you have plotted all the frequencies on the histogram, your histogram would show a shape. If the shape looks like a bell curve, it would mean that the frequencies are equally distributed. The histogram would have a peak.

Which class interval has the lowest frequency?