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2 years ago

Help please thanks so much!

Mathematics

1 answer:

Airida [17]2 years ago

7 0

Answer:

56 miles

Step-by-step explanation:

We need to sum all the terms in the series to determine how many miles Jeff ran

5+6+7+8+9+10+11

11+7+8+9+10+11

18+8+9+10+11

26+9+10+11

35+10+11

45+11

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The two dot plots below compare the forearm lengths of two groups of schoolchildren:

Angelina_Jolie [31]

Answer:

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Step-by-step explanation:

Create the dot plots based on the given information (please see attached images).

Group A = blue dots

Group B = red dots

From inspection of the attached dot plots, we can see that Group A appears to have the longer average forearm length. This is because 7 children have a forearm length of longer than 10 inches.

To calculate the average forearm length, sum all data values and divide by the total number of data values.

$\textsf{Average of Group A}=\dfrac{ 3 \times 10 + 4 \times 11 + 3 \times 12}{10}=11$

$\textsf{Average of Group B}=\dfrac{ 3 \times 9 + 5\times 10+ 2\times 11}{10}=9.9$

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2 years ago

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