rsmith4531
20.08.2019 •
Mathematics
Evaluate the expression -3x divided y
if x = 10 and y = -3.5
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Ответ:
Plug in the numbers given for x and y
-3(10)/-3.5
-30/-3.5
divide and that's your answer
Ответ:
Complete question :
A zoologist is interested in whether climate affects how high kangaroos can jump. In a random sample of gray kangaroos from an Australian forest, he found the mean jump height was x¯=286 inches with a margin of error of 15 inches.
Construct a confidence interval for the mean jump height of gray kangaroos.
(271, 301)
Step-by-step explanation:
Given that:
Mean (x¯) = 286
Margin of Error = 15 inches
The confidence interval :
(Mean - Margin of Error), (mean + margin of error)
(286 - 15), (286 + 15)
(271, 301)
Hence confidence interval equals : (271, 301)