Scales and Intervals
The table shows the longest rivers in the world
2341 2590 2718 2543 4160 2635
2734 3362 2744 2485 3395 2350
4000 3964 2600
Choose an appropriate scale and interval size for a frequency table that will represent the data. Then make a frequency table.
Then I have a chart that has 3 columns
Length
Tally
Frequency
(each section has 5 blank spaces)
Write a sentence to or two to describe how the data are distributed among the intervals.
choose an apropriate scale and interval size for a frequency table that will represent the sales. describe the intervals.
i need some help in putting in lenght ,tally & frequency
tert
I don't get this
To choose an appropriate scale and interval size for a frequency table, we need to consider the range of the data. In this case, the range spans from the shortest river length of 2341 to the longest river length of 4160.
Since the numbers are relatively large and close together, we should use a larger scale that can accommodate these values. Let's choose a scale of 500, starting from 2000 as the lower bound, and ending at 4500 as the upper bound.
Now, we need to determine an appropriate interval size. We can divide the range of values (4500 - 2000 = 2500) evenly into intervals to ensure all the data points are captured. Let's use an interval size of 500, resulting in the following intervals: 2000-2500, 2500-3000, 3000-3500, 3500-4000, and 4000-4500.
Using this information, we can now create the frequency table:
Length | Tally | Frequency
-----------------------------
2000-2500 | |
2500-3000 | |
3000-3500 | |
3500-4000 | |
4000-4500 | |
To fill in the tally column, go through each river length in the given data and place a tally mark in the corresponding interval. Then, count the tally marks for each interval and fill in the frequency column.
Finally, to describe how the data are distributed among the intervals, we can examine the frequencies. If certain intervals have higher frequencies, it suggests that rivers in those length ranges are more common. Conversely, lower frequencies indicate less common river lengths within those intervals.