Why is a class average more likely (than your group's data alone) to reflect the true percentage of time spent in each phase?

Bruh i don’t know the answer tbh but you can google it

Simple multiply 45 units by $0.99you'll get $44.55

Sorry  i don't understand can you rephrase that

What you get when you cross cinderella with a barber will shock you, since cinderella is one of the most beautiful princess in disney characters. she was being idolized by a lot of female kids all around the world. her story inspired a lot of people which makes her character more popular and being loved by many children.