This answer is not correct. The mechanism for the hydration of an alkene with dilute acid will first go through the most stable carbocation but this particular intermediate would have to arise by attack of propene by HO+ and this is a highly unlikely. You have also selected the less stable carbocation. Carbocations can be stabilized by hyperconjugation resonance and the carbocation leading to this intermediate has fewer hyperconjugation resonance forms than exist for the other possibility.