Answer:
They tilt their heads to work around their interfering muzzles and improve their visual perspective. That cute head tilt actually broadens the range of vision and allows a dog to more clearly see a person’s face. Seeing our facial expressions improves communication.
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.
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Answer:
when people reduce the amount of waste you produce by choosing products with less packaging and reuse items when you can. you can also choose reusable items
Explanation:
The cause of Shay's Rebellion was the government was trying to take away the farmers land which led to all the farmers to rebel against the government.
