Answer:
I think the first one
Step-by-step explanation:
A.
The contrapositive is formed by switching the hypothesis and conclusion of the statement and negating both of them.
Answer:
10.) 6 2/5 11.) 21/100
Step-by-step explanation:
I hope that these are correct, they are simplified.
Stay awesome! and don't forget to be K I N D! <3
Answer:
Completely Randomized Design
Step-by-step explanation:
In a completely randomized design, the samples are randomly assigned to the treatment without creating any blocks or groups.
Like here, in the given scenario, we do not have to divide subjects in two groups as they are all same.
Whereas, in a randomized block design, the participants are divided into subgroups in a way, that the variability within the blocks is less than the variability between blocks.
After dividing, the participants within each block are randomly assigned to treatment conditions.
Hence, the completely randomized design is used here.
