What are the importance of knowing the theorems on midline, trapezoid and kite
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Given:
The length of the marathon is L= 46,145 yards.
The length covered by terrence is d = 23,561 yrads.
The objective is to find the remaining distance need to cover by terrence.
To calculate the remaining distance, we will use the relation,
On plugging the values in the above relation, we get,
Hence, Terrence needs to run about 23000 yards.
The number of the families that need to be surveyed will be 2663.
<h3>What is the margin of error?</h3>
Your results will deviate from the actual population value by how many percentage points, as indicated by the margin of error.
We have the following info:
ME = 50 margins of error desired
= 1000 the standard deviation for this case
The margin of error is given by this formula:
(a)
And on this case, we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The critical value for the 99% of confidence interval now can be founded using the normal distribution. The significance is = 0.01. And for this case would be
= 2.58, replacing into formula (b) we got:
So the answer for this case would be n=2663 rounded up to the nearest integer.
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