What survey type is "An examination of 9,000 nine and 10-year-old children reveals changes in the brain’s structure among youngsters whose mothers regularly drank caffeine while pregnant." A) Simple Random Sample (SRS)

B) Stratified Random Sample

C) Systematic Sample

D) Cluster Sample

E) Convenience sample

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?

Jenny made a scale drawing of a city. the scale she used was 5 inches = 1 yard. what is the scale factor of the drawing?

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.