Answer:
Independent
Step-by-step explanation:
Paired: Two different variable observed on same group at different points in time. Here a randomly selected samples is observed for type of change card.
Independent: A single variable observed on multiple groups.
Answer:
52.9%
Step-by-step explanation:




Answer: B) (2; -2), (4; -1)
The weight as a mixed number would be 2 1/2 because having a mixed number is having a mix of a whole number and a fraction.
We have a proportion: 60/?= 20/100
Cross multiply:
20*?= 60*100
⇒ ?= 60*100/20= 300
60 minutes is 20% of 300 minutes~