<prompt> Mutsara 1: Nokuda kwebasa risingachinji rinogona kuyerwa formula _ 18, formula _ 19 is a random variable with mean formula _ 20 and variance formula _ 21. Mutsara wechipiri: Nokuda kwechimiro chakatarwa chinogona kuyerwa 18, chimiro 19 chinhu chinoshanduka chisina kurongwa chine chimiro chepakati 20 uye chimiro chekusiyana 21. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?  <response>: Hungu 