To solve this problem you must apply the proccedure shown below:
1- You must apply the following formula:
Where is the residual,
is the observed value
and
is the predicted value
.
2- You only need to substitute the into the equation
and then, you must apply the formula for calculate the residual:
The answer is: The residual is
Answer:
atleast 52
Step-by-step explanation:
Given that an employment agency requires applicants average at least 70% on a battery of four job skills tests.
An applicant scored 70%, 77%, and 81% on the first three exams,
Since weightages are not given we can assume all exams have equal weights
Let x be the score on the 4th test
Then total of all 4 exams =
Average should exceed 70%
i.e.
Comparing the two totals we have
Hemust score on the fourth test a score atleast 52 to maintain a 70% or better average.
Answer:
a=7
Step-by-step explanation:
The image is rendered and attached below.
Triangle WXY is an Isosceles right triangle, since WX=XY.
First, we determine the length of WY using Pythagoras Theorem.
Since triangle WXY is Isosceles,
Therefore:
Triangle WYZ is a right triangle with WZ as the hypothenuse.
Applying Pythagoras Theorem
