Answer:
1.) It is biased
2.) No
3.) Yes
4.) No
Step-by-step explanation:
1.) It is biased as it is predisposition to one particular outcome over another.
2.) No, because biased in research leads to unrepresentative outcomes as the estimates is predisposed to the left or to the right of the true values.
3.) Yes. Since the selection of shift has an equal probability of being chosen.
4.) No. The probability that the sample accurately reflects the efficiency of the workers, the standard should be 95%.
Answer:
b. 
Step-by-step explanation:
The graph can be divided into 4 regions.
Region 1 is for 
Region 2 is for 
Region 3 is for 
Region 4 is for 
So, for the region 1, the values of 
goes on decreasing with increasing 
. Therefore, the function is decreasing in the interval 
.
Now, for the region 2, the values of increases with increasing . So, the function is increasing in the interval 
.
For the region 3, the the values of goes on decreasing with increasing . Therefore, the function is decreasing in the interval 
.
Now, for the region 4, the values of increases with increasing . So, the function is increasing in the interval 
.
Therefore, regions 2 and 4 are the regions when the function is increasing.
Hence, the correct option is b.
Answer:
The scale factor is 1.5
Step-by-step explanation:
Given
Required
Determine the scale factor
The scale factor (k) is calculated using:
Substitute values for OA and OA'
<em>The scale factor is 1.5</em>
A^2 = b^2 + c^2 - 2bc cos a
= 11^2 + 5^2 - 2*5*11 cos 40
= 7.86 to 2 DP's
to find the remaining angles use the sine rule:-
a / sin A = b / sin B so
7.857/ sin 40 = 11 / sin B
sin B = 11 sin40 / 7.857 = 0.8999
<B = 64 degrees
so <C = 180 - 64-40 = 76 degrees
Answer:
(51, 26) x-y=25 and so on
(47,33) 2x-3y=-5 and so on
(-17, -36) x-y=19 and so on
(-31, -56) 2x-y=-6 and so on
Step-by-step explanation:
