Help me please I don’t know how to get to the end
1 answer:
From what I know about slopes, I'm pretty sure that's the path you have to take is the picture below.
For each box, you have to do is count the change in the y-value and the change in the x-value between the points. Once you know those values, you have to divide y by x.
For example, take a look at the first graph. If you count, the change in the y-value is 3 units. The change in the x-value is 5 units. So, since slope is y/x, the slope is 3/5, which would take us to graph to the left.
Don't be afraid to ask any questions! Hope this helped.
Edit: Oh, and for the graphs that have lines that are completely vertical, the slope is undefined. For the graphs with lines that are completely horizontal, the slope is 0.
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Therefore, the man is shorter than 141 centimeters.
Answer:
A sample of 1068 is needed.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
95% confidence level
So , z is the value of Z that has a pvalue of
, so
.
At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.03 for the estimation of a population proportion?
We need a sample of n.
n is found when M = 0.03.
We have no prior estimate of , so we use the worst case scenario, which is
Then
Rounding up
A sample of 1068 is needed.