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2 years ago

A javafx action event handler is an instance of _______.

Social Studies

1 answer:

Oduvanchick [21]2 years ago

6 0

An instance of an event handler is a JavaFX action event handler.

<h3>What is an event handler for JavaFX?</h3>

Events are notifications when something has happened in JavaFX applications. Events are dispatched as a user clicks a button, presses a key, or takes other actions. The application's registered event handlers and event filters receive the event and respond. An instance of EventHandlerActionEvent> is a JavaFX action event handler. A method called public void handle is included in the JavaFX action event handler (ActionEvent e). Since this is a functional interface, a lambda expression or method reference can utilize as the assignment target.

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Dmitriy789 [7]

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4 years ago

which of the following statements must be true about the data sets a and b displayed in the histograms above?

yanalaym [24]

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Standard deviation:

Is used to check how far apart the data in a set are
Is calculated by square rooting the variance

When the standard deviation is high, it means that the data in a set are spread apart which is the case with dataset A as we can see that the frequencies are 8, 2, 1, 2, and 8. The 8s and the 2s are quite far apart so the standard deviation here is significant.

In the case of dataset B, the standard deviation is not as much as most of the frequencies are close to each other - 1, 2, 8, 2, 1.

In conclusion, dataset B has a lower standard deviation than dataset A.

Find out more at brainly.com/question/15040200.

Options for this question include:

a. The standard deviation of data set A is greater than the standard deviation of data set B.

b. The mean of data set A is equal to the mean of data set B

c. The median of data set A is equal to the median of data set B.

d. The range of data set A is equal to the range of data set B.

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Answer:

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