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ExtremeBDS [4]
3 years ago
12

10. The probability that a randomly selected student has at least 1 household member who smokes is 0.421. Which cell is connecte

d to this probability?
Use this probability to calculate the value of that cell.
Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

Since we know that the probability that a randomly selected student has at least 1 household member who smokes is 0.421. Then the total who correspond to Cell 8 on this case is 0.421*1000 = 421

Step-by-step explanation:

We assume the following table:

                                   No Hou. smokes     >=1 hou. smokes           Total

______________________________________________________

Student indicates he           Cell 1                        Cell 2                    Cell 3

or she has asthma

_______________________________________________________

Student indicates he

or she does not have            Cell 4                      Cell5                    Cell 6

asthma

_______________________________________________________

Total                                      Cell 7                         Cell8                   1000

We are assuming a grand total of 1000 people for this case

Since we know that the probability that a randomly selected student has at least 1 household member who smokes is 0.421. Then the total who correspond to Cell 8 on this case is 0.421*1000 = 421

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Answer:

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Step-by-step explanation:

We have drawn the diagram for your reference.

Given:

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According to Diagram we can say;

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Also Given:

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So According to Diagram we can say;

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According to diagram we can say;

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Assuming the diagram  to be right angled triangle.

We can find CA using Pythagoras theorem.

{CA}^2 = {CB}^2+{BA}^2

Substituting the given values we get;

{CA}^2 =1.5^2+0.8^2 = 2.25 +0.64 =2.89

Taking square root on both side we get;

\sqrt{{CA}^2} = \sqrt{2.89} \\\\CA = 1.7 \ mi

Hence Grayson has to walk 1.7 miles across the field.

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