A) they needed to feed the population and to trade
Answer:
Chandra Gupta I obtained most of his land by marriage; by doing this he was able to quickly obtain land by marrying a royal with a rich father, making him one of the wealthiest men in his time.
<em>Hope this can help! ≧◡≦</em>
Answer: unreliability
Explanation: Some of the problems that determine the quality of an experiment are reliability and validity.
Reliability considers the consistency of the experiment. In the example above, the result of the second sample is inconsistent with the result of the first sample, making Watt's research unreliable. That is, it does not reflect the ratings of a larger population. This problem can be solved by increasing the sample size, such that the average ratings are more reflective of a wider audience.
Validity considers the accuracy of the experiment. A lack of reliability of an experiment will likely make the result invalid as well, but this is not always the case.
The PWC should be overturned completely.However,the person in charge should be very familiar with the right procedure which is used in the PWC as well as re-boarding it.Some manufacturers have placed a craft which guides in rolling your PWC in an upright position.
Answer:
c. predictive validity
Explanation:
In research, the term predictive validity refers to the fact that a score in a test or the performance on a task is related to the performance in another test or task that is evaluated in the future after the first test. So, the first test/criterion will likely predict how the person will do in the second one.
In this example students take a college entrance exam and it's been observed that the ones who do well in them, do well in their first year of college. We can see that <u>the score in the entrance exam will likely predict how the students will do during their first year of college</u>. Therefore, these exams have predictive validity.