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.
The majority of Equatorial Africa is dominated by tropical rainforests. This region receives anywhere from 100 to 500 centimeters of rainfall annually. Temperatures average about 90 degrees each day in the equatorial parts of this region.
the answer is option c more water was used to produce electricity than to grow crops
Answer: The correct answer is : The central limit theorem
Explanation: This is a fundamental theorem of probability and statistics. When the sample size is large enough, the distribution of the means follows approximately a normal distribution. The theorem can be applied regardless of the form of population distribution.