−5 < a − 4 < 2
+4 +4
-1 < a < 6
Answer is B. The second one
Answer:
Studied for the class:
Passed: 12
Didn't: 0
Didn't study for the class:
Passed: 2
Didn't: 11
Answer: A) 0.016
Step-by-step explanation:
The standard error is also known as the standard deviation of sampling distribution.
Formula : 
Given : The proportion of respondents approve the job that President Barack Obama was doing handling the economy : 
Sample size : n= 1000
Then, the standard error (SE) of
is

Hence, the standard error (SE) of
is 0.016 .
Answer:
it is -3 8 and 2
Step-by-step explanation: