Asriel thinks he has room for a 50 inch TV in his living room it turns out he only has room for a 40 inch tv what is his percent error?

Can someone me with this problem i don't understand i need

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Identify the conclusion of the conditional statement. if you live in phoenix, then you live in arizona.