Astudy is created in which the participants were randomly assigned to groups for different treatments. which best describes the reason this was done?   a. it allows us to see the true nature of any effects of different treatments.   b. it allows us to determine if the treatment effect is significantly different from the placebo effect.   c. it allows us to distinguish among the effects of different factors.   d. it allows us to use chance as a way to create groups that are similar to the population.

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?

He graph of f(x) = |x| is stretched by a factor of 0.3 and translated down 4 units. which statement about the domain and range of each function is correct? the range of the transformed function and the parent function are both all real numbers greater than or equal to 4. the domain of the transformed function is all real numbers and is, therefore, different from that of the parent function. the range of the transformed function is all real numbers greater than or equal to 0 and is, therefore, different from that of the parent function. the domain of the transformed function and the parent function are both all real numbers.