The 1st row has 15 chairs.
The 2nd row has 15 + 3 = 18 chairs.
The 3rd row has 18 + 3 = 15 + 2•3 = 21 chairs.
The 4th row has 21 + 3 = 15 + 3•3 = 24 chairs.
The pattern continues, so that the n-th row has 15 + (n - 1)•3 = 3n + 12 chairs.
If there are 15 rows, then the total number of chairs is
where we use the formulas
Answer:
sorry I didn't know next time I tell you ok
The store that has a greater variety of numbers of wristbands sold is the store whose box plot has a greater IQR value.
<h3>How do we Determine Variability in a Box Plot?</h3>
- Variability of a data distribution that is represented by a box plot can be determined by the interquartile range (IQR) = Upper Quartile (Q3) - Lower Quartile (Q1).
- See the diagram attached below to understand how to get the Q3 and Q1 of the data distribution.
In conclusion, variability is a measure of IQR. The greater the IQR of a box plot, the greater the variety. Thus, the store that has a greater variety of numbers of wristbands sold is the store whose box plot has a greater IQR value.
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In the context of Alabama in the 1900s, the umwa was culturally and historically significant because it supported the civil rights movement in supported coal mining companies.
<h3>The umwa</h3>
The United Mine Workers of America (UMW or UMWA) is a North American labor union best known for representing coal miners. Today, the Union also represents health care workers, truck drivers, manufacturing workers and public employees in the United States and Canad.
With this information, we can conclude that in the context of Alabama in the 1900s, the umwa was culturally and historically significant because it supported the civil rights movement in supported coal mining companies.
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