Im Not completely sure what this is asking, but can someone please help answer this
1 answer:
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Answer: 0.6812
Step-by-step explanation:
Let p be the population proportion of trees are infested by a bark beetle.
As per given: p= 12%= 0.12
Sample size : n= 1000
Number of trees affected in sample = 1000
Sample proportion of trees are infested by a bark beetle. =
Now, the z-test statistic :
So,
Hence, the value of the z-test statistic = 0.6812 .
Answer:
Right now it would be
Since desend means down add -20 to -40
or
Then is goes up 35, which is positive
Therefore, the answer is -25
Hope this helps
Answer by
<em>Fishylikeswater</em>
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Answer:
Step-by-step explanation:
Open up the parentheses
-7x cancels out on both sides
-12 cancels out on both sides
I hope this helps!
let's firstly convert the mixed fractions to improper fractions and then proceed.