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Answer:
energy
Explanation: took the quiz
Explanation:
Only the top layer of a lake or river freezes, un- derneath the frozen upper layer the water remains in its liquid form and does not freeze. Also, oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds
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Answer:
4 significant figures.
Explanation:
The number 5,684 contains 4 significant figures.
The number 5.684 contains four non-zero digits and no zeros.
Answer:
Option (C) is correct.
Explanation:
Confidence interval is a type of range which includes the true value of the population parameter. Confidence interval can be determined from the statistics of the researched data.
For example:
z_c = 1.96 at 95% confidence ⇒ Z- critical value
n = 50
x - bar = 375
SD = 20
Margin of error, E = ?
E = 5.5437
Therefore,
95% CI:
= (375 - 5.5437, 375 + 5.5437)
= (369.4563 , 380.5437)
Hence, 95% confidence interval is (369.4563, 380.5437). This includes the value of x-bar = 375 in the confidence interval.