What is the purpose of frequency graphs?

1 answer:

3 0

Frequency graphs are used to represent data to identify a range of measure. It displays a visual illustration that presents frequency counts to make the information be interpreted more easily. It also shows an absolute distribution or relative frequencies like precentages or proportions. Frequency table or Frequency graph is the simplest method to show the number of occurrences of a particular characteristics. Histograms or bar charts are both displays of frequencies. This is done through plotting columns on a graph. It is usually written thru an X and Y axis which generally represents a measured variable and frequency count, respectively.

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His total earnings would be (18%)[$6.25(hours in 1st job) + $7.50(hours in 2nd job)]. However, we know that his total hours is 40 hours, so if we let the number of hours he spends in his 1st job be x, the number of hours in the 2nd is (40 - x).
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David has 3 1/2 cups of blueberries. He uses 1/4 of a cup of blueberries to make a breakfast smoothie. He uses 1/2 of the remain

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Answer:

$1\frac{5}{8}$ cup of blueberries

Step-by-step explanation:

Since David starts out with 3 1/2 cups of blueberries and uses 1/4 cup to make a smoothie, we will need to subtract 1/4 from his starting amount of 3 1/2

$3\frac{1}{2}-\frac{1}{4} =3\frac{1}{4}$ David now has 3 1/4 cup of blueberries

David then uses half of this new amount of blueberries to make his pancakes. We will need to divide by 2 in order to figure out how much half is

First we can turn 3 1/4 into an improper fraction to make it easier to work with → 3 1/4 = 13/4
Now dividing 13/4 by 2 gives us $\frac{\frac{13}{4} }{2} =(\frac{13}{4})(\frac{1}{2}) = \frac{13}{8}$
David used 13/8 cups of blueberries to make his pancakes
Turning this back into a mixed number leaves him with 1 5/8 cup of blueberries