18 19 s to their spring ent tickets sold for $4.50 each. if 15. the juni houston isd the junior class at summerfield high school sold a total of 375 tickets to their son festival. the adult tickets sold for $7.50 each and the student tickets sold for $450 the junior class collected $2,212.50 in the ticket sales, how many student tickets did th class sell? record your answer and fill in the bubbles on your answer document.
The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample