Answer:
) Cluster sample.
Step-by-step explanation:
Here are the options
A) Multistage sample.
B) Stratified sample.
C) Cluster sample.
D) Simple random sample.
E) Convenience sample.
A cluster sample is when a population is divided into groups known as clusters. Samples are then randomly selected from this sample. It is a method of probability sampling used for large populations.
The airline first divided the population of travellers by months travelled. this is the cluster. From within the cluster, 10 samples are then chosen
Advantages of a cluster sample
- it is faster
- it is less expensive
- It reduces variability
Disadvantages of a cluster sample
- it only works well when population can be divided into clusters
- It is affected by sampling error
Before his monthly payments he would bring in $3,300.80. All of his bills total to be $939. After all his bills are paid he will bring in a total of $2361.80. Half of what his final total is would be $1180.90.
Answer:
3423
Step-by-step explanation:
6⇅∞ωπ⊂⇔⇔⇔⇔
Answer:
Find the value of 2x.
Step-by-step explanation:
<span> Solutions of a quadratic functions are x-intercepts, or when y equals zero. A graph with its maximum (highest point) below the x-axis or a graph with its minimum (lowest point) above the x-axis never touches or crosses the x-axis, so it has no real solutions. It is still a quadratic function, as long as it has a variable to the second power (definition of quadratic) and passes the vertical line test (definition of function).
Hope this helped! <3
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