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Two different age groups were surveyed about the amount of time they spent on social media. Answer the questions on the picture.

Two different age groups were surveyed about the amount of time they spent on social media. Answer the questions on the picture. class=

Answer :

Answer:

A)320. You got the adding up somewhere

B)20

Step-by-step explanation:

For A you got the adding wrong somewhere.

For b you had to add 25 and 35 together to make 60.

Divide 60 by 2 to get 30. 30 is the average between the two numbers. You then find the frequency of 30 using the graph. For the 12 year olds it is 40 and for the 18 year olds it is 60. Find the difference between these 2. So 60-40= 20

Hope you understood ;)

The frequency polygon seems to be graph lines showing the frequency of class draw against class mid-point. This could be obtained by joining all midpoints of the tops of rectangles in the distribution, and further points calculation can be defined as follows:

  • In point A, We made an error somewhere within the addition.
  • In point B, We would have to multiply 25 by 35 to reach 60.

         [tex]\bold{\frac{60}{2}= 30}[/tex]

  • 30 is indeed the mean of the two numbers.
  • In each graph is then used to calculate the speed of 30.
  • This is 40 for 12-year-olds and 60 for 18-year-olds, which is used to calculate the distinction between the two, So [tex]\bold{60-40=20}[/tex].

Therefore, the final answer is "320 to get the total of someplace and 20"

Learn more:

brainly.com/question/21901194

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