how to create random numbers in mysql events?

Question

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INSERT into rate values(NULL,\'admin@admin.com\',\'2020-12-14 00:27:30\',\'0.5\',\'1.0\',\'1.3\',\'1.6\',\'2.2\',\'2.8\',\'3.3\',\'4.0\',\'5.0\',\'5.5\