<!DOCTYPE html>
<html>
<head>
<title>Title of the Document</title>
<script src="https://code.jquery.com/jquery-3.5.0.min.js">
</script>
</head>
<body>
<div>
<label>
<input type="radio" name="check button" id="radiobtn1"> Radio Button 1</label>
<label>
<input type="radio" name="check button" id="radiobtn2"> Radio Button 2</label>
</div>
<div>
<button type="button" class="checkRadioBtn1">Checked Radio Button 1</button>
<button type="button" class="checkRadioBtn2">Checked Radio Button 2</button>
</div>
<script>
$(document).ready(function() {
$(".checkRadioBtn1").click(function() {
$("#radiobtn1").prop("checked", true);
});
$(".checkRadioBtn2").click(function() {
$("#radiobtn2").prop("checked", true);
});
});
</script>
</body>
</html>