Answer:
75%
Explanation:
In order to understand this question you need to understand the matching law first. The matching law provides the density of reinforcement or the rate of reinforcement if more than one response is available simultaneously to the individual. Here, two responses are available which are left key, 60 reinforcers per hour, and right key, 20 reinforcers per hour. This provides the ratio between the two reinforcers which is 60:20 or 3:1 in favor of left key. Here, one has to make a prediction only for left key and based on 3:1 ratio it can be said that 75% of pigeon will make their responses on the left key.
B. The president can establish a direct connection with people.
Yes, because it's a picture taken of the event.
You know a secondary source is something that DID NOT take part of or witness the event, so a Primary source is something that DID take part of, or witness the event.
So a picture would be a Primary source.
Both A and C
A. To memorize dates, people, and events
C. To recognize historical patterns
If you have to choose one, I would go with C.
The correct answer is CAUCUS
