Answer:
8
Step-by-step explanation:
4/6 reduces to 2/3
2/3 x 12/1 = 24/3
24/3= 8
Answer:
b) Dependent sample
Step-by-step explanation:
Given:
Sample size, n = 1400
The average sleep of the respondents in weekdays = 6.5 hours
The average sleep of the respondents in weekends = 7.2 hours
% with eight or more hours of sleep on weekdays = 20%
% with eight or more hours of sleep on weekends = 43%
Required: To Check if the samples on weekdays and weekends are independent or dependent.
When samples are independent, it means one sample does not influence the other and vice versa, while samples are said to be dependent if the outcome of one test influences the outcome of the other. The tests might be from a similar population or from various populations.
In this case, the sample gathered are from similar population because same sample is used for both weekdays and weekends. Therefore, we can say the sample is a paired sample.
The samples on weekdays and weekends are dependent since same people are used, also since sleep on weekdays and sleep on weekends may influence each other.
You can find it in this image below.
Answer:
The trestle meets ground level at 0.875 units and 9.125 units
Step-by-step explanation:
Poorly formatted question.
The given equation is:
Required
The point where the trestle gets to the ground level
To do this, we set 
So, we have:
Multiply through by -1
Solve using quadratic formula:
Where:
So, we have:
Solve the fraction
Split
