Response:
Detailed explanation:
Hello!
Stratified sampling involves the categorization of the population into subgroups based on pre-established criteria for the study. These subgroups consist of homogeneous units concerning the relevant characteristics. In this instance, individuals in the groups will represent only one of the two potential opinions (support or not support) and not both.
The researcher determines the sample size desired, considering several factors such as finances, material availability, and accessibility to experimental subjects (for instance, if they are endangered species, larger sample sizes may not be feasible).
One might conduct proportionate stratified sampling by selecting a proportion of respondents who answered "yes" along with those who answered "no."
In this sampling method, taking a specific proportion from each subgroup allows for a more straightforward extrapolation of results to the overall populations. For example, if you needed a sample size of n = 20, each stratum would ideally contain half, meaning 10 from the “yes” group and 10 from the “no” group.
I hope this is helpful!
Shane and Abha received a team badge for gathering at least 2000 cans for recycling.
This indicates that their collection must total a minimum of 2000 cans.
Abha managed to collect 178 more cans than Shane.
Let’s denote the number of cans Shane collected as S
So, Abha collected = S + 178
The inequality representing the number of cans collected by Shane can be expressed as:

=



A) The independent variable in this scenario is the quantity of books purchased.
C) The overall cost for the year hinges on the number of books obtained.
E) The output of this function is the total yearly cost.
Answer:
Question 13: For age groups y=1 and y=1.3, the response time is 8 microseconds.
Question 14: The club experienced losses between 11.28 and 4.88 years.
Step-by-step explanation:
Question 13:
The equation that gives the response rate R of 8 microseconds can be expressed as

Upon graphing this, we determine the solutions to be

We consider only positive values of y applicable in real-life scenarios.
Thus, the response is 8 microseconds solely for the age groups y=1 and y=1.3.
Question 14:
The football club incurs losses when 
Or

Graphing this inequality reveals the solutions to be
and 
As only positive values for t are relevant in practical situations, we accept the second solution.
Hence, the club faced losses during the years 