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enyata [817]
3 years ago
14

I need help ASAP!

Mathematics
2 answers:
solong [7]3 years ago
6 0

Answer:

In class B, the chart show that:

- 3 people (families) in the class have no vehicle

- 4 people (families) in the class have 1 vehicle

- 10 people (families) in the class have 2 vehicles

- 7 people (families) in the class have 3 vehicles

- 0 people (family) in the class have 4 vehicle

- 1 person (family) in the class have 5 vehicle

Hope this help :3

Angelina_Jolie [31]3 years ago
6 0
<h2>Answer:</h2>

The mean number of vehicles owned by the families in Class B is:

                                        2

<h2>Step-by-step explanation:</h2>

We know that the mean id calculated as the average of the data entries.

 Now for class B we make a frequency table as follows:

Number of vehicles(x)      Number of families(y)      xy  

        0                                         3                                  0

         1                                         4                                   4  

         2                                        10                                 20

         3                                         7                                  21  

         5                                         1                                    5

Total number of families= 3+4+10+7+1= 25

∑ xy= 0+4+20+21+5= 50

Hence, the Mean is:

Mean=\dfrac{\sum xy}{Number\ of\ families}\\\\i.e.\\\\Mean=\dfrac{50}{25}\\\\i.e.\\\\Mean=2

       

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