$DELL and $COST EA Trades - Post Mortem

Quick question: If you have a trading strategy that wins 50% of the time and loses 50% of the time, can you still make money over time? I have two trades as an example that will help answer that question. Yesterday I posted about two EA trades, one for $DELL and one for $COST, and guess what? One was a winner and the other was a loser. 50/50 outcome. https://www.reddit.com/r/options/comments/1tqec3p/dell_and_cost_earnings_today_atc_iv_rich_for_one/ $DELL had a massive beat and spiked more than 3