<span>D. Better private schools.
I Hope This Helps ^_^
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Answer: I mean I'll leave him, for the risk of being hurt the boy may be dangerous. My second opinion would be stay there for the boys riding because he may be writing something important.
Explanation:
If you have samples of n 1 equals 22 and n 2 equals 20, in performing the pooled-variance t test, you have 40 degrees of freedom.
The t-test method is a method where we analyze two sets of data which both these data are independent of each other. This pooled variance test helps us in getting the overall variance in both these different sample sets when we know that both the sample sets are almost equal.
To calculate degrees of freedom, we have the formula
df = n1 +n2 -2
According to the question, n1= 22 and n2= 20
Therefore, degree of freedom= 22 +20 -2 = 40
Hence, degree of freedom is 40.
To learn more about t-test, click
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Answer:
This leads to backwardness and lagging in the development of the the society. Social problems such as sickness, poverty , social injustices , corruption , nepotism, tribalism are slowing down the process of development .
Explanation:
hope it helps!!
The Crusades contributed to the Age of Exploration by creating a desire in Europe for new products and new trade routes to the East.
Answer: Option B
<u>Explanation:</u>
Crusaders had their hand in this era by innovating and developing new products that could be used by people, new resources and new innovations.
They also contributed by finding the way to reach the eastern part of the world where the demand of the European goods was high and this led to the settlement of the entrepreneur and merchants in the eastern part of the world.
