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Entity relationship diagram

I am trying to create an entity relationship model for my application.

The application has questions and answers within a quiz.

The model which I have produced so far looks like this:

在此处输入图片说明

I am quite new to these diagrams, so would appreciate if someone could explain how to complete it with an arrow and multiplicity.

The Quiz table holds questions in QUIZ_TEXT and the correct answer in CORRECT_ANSWER

The Answer table holds the answers in ANSWERS and matches these answers with the QUIZ_ID which is the question.

I understand this is probably simple but I haven't worked with databases for a long time and my mind is going blank. Also all I need to do is this then I can move on and the majority of my work is not on databases. Please help. Thanks

Edit:

I have tried to do this, please let me know if this is correct. Thanks: 在此处输入图片说明

The relationship between Quiz and Answer is one-to-many so you should draw line from Quiz to Answer and put a crow's foot in the Answer end. There are other notations but this is one of the most common ways.

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