There are 25 students in mrs. ventozzi’s class at the beginning of the school year, and the average number of siblings for each student is three. a new student with eight siblings joins the class in november. what is the new class average for number of siblings? round your answer to the nearest hundredth

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

What additional information could be used to prove abc =mqr using sas? check all that apply.

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244