urvey of 533 adults aged 18-24 year olds was conducted in which they were asked what they did last Friday night.  It found: 196 watched TV 188 hung out with friends 181 ate pizza 50 watched TV and ate pizza, but did not hang out with friends 48 watched TV and hung out with friends, but did not eat pizza 45 hung out with friends and ate pizza, but did not watch TV 44 watched TV, hung out with friends, and ate pizza How may 18-24 year olds did not do any of these three activities last Friday night?

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