Answer:
binary star system and physical double star system
The option that best describes how the teacher likely came to this conclusion is that:
- The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
<h3>What is observational study?</h3>
An observational study is known to be a kind of study where a researcher do observes the subjects without having any form of interference with them.
Here, the researcher is said to have no control over any of the treatments that is used on the subjects. All the have to do is observe and record their findings.
See options below
A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
B. The teacher conducted a sample survey by asking students if they completed their review worksheets and if they think they did well on the test.
C. The teacher performed a controlled experiment in which one group of students decided not to complete their review worksheets and the other group decided to complete their review worksheets.
D. The teacher performed a random experiment in which the test scores of one group of students would be higher and the test scores of the other group would be lower.
Learn more about worksheets from
brainly.com/question/23624194
The measures give the description of the shape and the whisker plot from the data. The median is always placed in the middle of the center.
<h3>What is a graph?</h3>
A graph is the diagrammatical representation of the data or information set that are illustrated in the form of vertical and horizontal coordinates.
The data given shows:
- Mean = 39,500
- Median = 20000
- Mode = 23000
- Minimum = 15,000
- Maximum = 255000
The whisker plot and the box shape are attached as an image below.
From the image, it can be seen that whiskers are at the right and left of the box, and the box initiates from the lower quartile to the upper quartile.
The median of the data is at the middle, the maximum is at the end of the right whisker, and the minimum is at the end of the left whisker.
Learn more about the whisker plot here:
brainly.com/question/10272098
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