Answer: 0.0328
Step-by-step explanation:
Standard error is the standard deviation of the sampling distribution.
The formula to find the standard error is given by :-
,where n= sample size.
= Sample proportion.
Given : Of the 2266 high school students surveyed, 952 admitted to smoking marijuana at least once.
A study done 10 years earlier estimated that 45% of the students had tried marijuana.
i.e. Population proportion : p= 0.45
Sample size : n= 226
Sample proportion : 
Then , the standard error for this test will be :-
Hence, the standard error for this test= 0.0328
When we have mixed signs we need to make it a negative. A plus and a minus or a minus and a plus are made into a minus by default.
With that in mind the question would not turn into 1 - 2 =
From here we take the sign of the bigger number. The bigger number would be negative 2 and we put it as the first part of our solution
This next step might be easier with a number line from -5 to 5
We start at positive 1 on the number line. From here we need to go left because when subtracting you go left. We move two spaces to the left. So the one goes to 0 and then it goes to -1
The answer would turn out to be <u>negative one</u><u>(</u><u>-1</u><u>)</u>
<u>1</u><u> </u><u>-</u><u> </u><u>2</u><u> </u><u>=</u><u> </u><u>-</u><u> </u><u>1</u>
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Answer:
2044 cubic inches
Step-by-step explanation:
The amount of concrete required is the larger volume MINUS the smaller volume.
Note: Volume of cube = s^3 where s is the side length
Larger Volume = s^3 = 15^3 = 3375
and
Smaller Volume = s^3 = 11^3 = 1331
Hence, amount of concrete needed to make 1 planter = 3375 - 1331 = 2044 cubic inches
Answer
8/12=4/6=2/3
When simplifying, if both the numerator and the denominator are even you can just divide them by two
Answer:
0.71428571
Step-by-step explanation:
