The sample is his friends. They might be the same group of interests. The sample needs to be random. Even if he went around and grabbed random people he may not have known at his school, it still wouldn't be random bc they could all be bias towards a local sports team or have different interests than someone from somewhere else
{35km + x = 140km} {140km - 35km= 105km} so the car traveled 105 kilometers.
In systematic sampling, individuals are selected at regular intervals from the sampling frame.
<h3>How to explain the sampling?</h3>
Stratified sampling- In this method, the population is first divided into subgroups (or strata) who all share a similar characteristic
<u>Clustered sampling.</u>- a clustered sample, subgroups of the population are used as the sampling unit, rather than individuals. The population is divided into subgroups, known as clusters, which are randomly selected to be included in the study
<u>Simple random sampling. </u>-In this case each individual is chosen entirely by chance and each member of the population has an equal chance, or probability, of being selected.
Quota sampling--This method of sampling is often used by market researchers. Interviewers are given a quota of subjects of a specified type to attempt to recruit.
Learn more about sampling on:
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Answer:
The answer would simply be m = (8 + 3n)/4
Step-by-step explanation:
If you look at the question closely, you have two variables, and you have not been given the value for any of them, so we have to solve this algebraicly.
First, we need to get m on one side, and so we add 3n to both sides to get rid of it.(We should have 4m = 8 + 3n)
Next, we need to isolate m, we need to get it alone, by itself to get the answer, so we divide by 4 on both sides.
The expression on the right side(8 + 3n) has to be divided by 4 fully, and so your answer would simply be m = (8 + 3n)/4.
If you need more confirmation, plug in the whole expression into the given expression to check your answer.
