RadioButton Binding in WPF

<RadioButton GroupName="Group1" IsChecked="{Binding PropertyValue}" Content="Male" />
<RadioButton GroupName="Group1"  Content="Female" IsChecked="{Binding PropertyValue, Converter={StaticResource BoolInverterConverter}}" >

public class BoolInverterConverter : IValueConverter
{
    #region IValueConverter Members

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (value is bool)
        {
            return !(bool)value;
        }
        return value;
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (value is bool)
        {
            return !(bool)value;
        }
        return value;
    }

    #endregion
}