There are 25 students in mrs. venetozzi’s class at the beginning of the school year, and the average number of siblings for each student is 3. a new student with 8 siblings joins the class in november.
the average number of siblings that each student has is
select a value
* larger than the original average.
*smaller than the original average.
*the same as the original average.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

For what value of (y) is 3^3/3^y =1/9