Simplify 2(2x-y)-4(x-y)+3yplease give the answer if you know how to solve it
1 answer:
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Answer:180
Step-by-step explanation:
Answer:
"0.0125" is the right solution.
Step-by-step explanation:
The given values are:
Random sample,
n = 90
Claims,
p = 20%
or,
= 0.20
By using normal approximation, we get
⇒
On substituting the values, we get
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⇒
Now,
The standard deviation will be:
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On putting the above given values, we get
⇒
⇒
⇒
⇒
hence,
By using the continuity correction or the z-table, we get
⇒
⇒
⇒
From table,
⇒