Answer:
<h2>It is Random sampling.</h2>
Step-by-step explanation:
There are total 5 types of sampling.
- Random Sampling: In this kind of sampling, elements are randomly chosen from a particular population. Every elements of the population carries the same probability in this case.
- Systematic Sampling: Every k-Th element is taken for this kind of sampling.
- Convenience Sampling: Here samples are chosen as per the accessibility.
- Cluster Sampling: First the whole population is divided in some groups or cluster, then some groups are randomly selected.
- Stratified Sampling: The whole population is being divided into groups as per some characteristic. Then from each group, one sample is to be chosen either randomly or using some other process.
Since, in the given question the students are chosen randomly, Random sampling is being used here.
Step-by-step explanation:
- Differentiate it.
- You will be given a value of x. Substitute into the differentiated equation
- use the formula for rate of change.
- You will find the answer
Formula:
We know that the perimeter of a rectangle is 2(width)+2(length). We can multiply the length by 2 to find out how much remaining fencing we have, then divide that number by 2 to find the width.
15.5*2=31
170.5-31=139.5
139.5/2=69.75
A possible width is 69.75 feet.
The right answer for the question that is being asked and shown above is that: "A. $30." Cho's bike was on sale for $20 less than the original price, and her total cost was half of what Jeff paid. Jeff pay A. $30 <span>for his bike</span>
Jeff = x (original price)
Cho = x-20
Answer:
18.6
Step-by-step explanation:
We are given that
We have to find the value of k.
Divide by 32 on both sides then we get
Taking ln on both sides then we get
Hence, the value of k=18.6