In a psychology experiment, the test gathering (or trial condition) alludes to the gathering of members who are presented to the free factor. These members get or are presented to the treatment variable.
The free factor is changed in the exploratory gathering.
For example : A human test gathering could get another prescription, an alternate type of advising, or some nutrient enhancements
The two domes or hemispheres simply have the area of a complete sphere with the same diameter. So the total area is the area of a sphere and a cylinder...