Answer:
The total number of bugs in the collection is 36
Step-by-step explanation:
Let
x -----> the number of bugs that you find out
y ----> the number of bugs that the classmate find out
we know that
-----> equation A
----> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
The solution is the point (20,16)
The total number of bugs in the collection is
Answer:
C. Those who have a car tend to have a cell phone.
Step-by-step explanation:
The relative frequency for a data set n is calculated by dividing each frequency by n.
We have a table that relates the use of cars and cell phones.
First, we take from the table the population that has a car.
Then, of the students who have a car, 12 have a cell phone and 6 do not have a cell phone.
Then we calculate the relative frequencies for those who have a cell phone and those who do not.
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Relative frequency Students with car n = 18.
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C<em>ell phone No cell phone Total n</em>
12/18 6/18 18
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_______________________________________________
Relative frequency Students with car n = 18.
-------------------------------------------------- --------------------------------------
C<em>ell phone No cell phone Total n</em>
0.666 0.333 18
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Most students who have a car also have a cell phone.
Now we calculate the relative frequency for students who do not have a car.
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Relative frequency Students without a car n = 7
-------------------------------------------------- --------------------------------------
<em>Cell phone No cell phone Total n</em>
2/7 5/7 7
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_______________________________________________
Relative frequency Students without a car n = 7
-------------------------------------------------- --------------------------------------
<em>Cell phone</em> <em> No</em> <em>cell phone Total n</em>
0.286 0.714 7
_______________________________________________
Most students who do not have a car do not have a cell phone either.
<em>Then these data suggest that. Those who have a car tend to have a cell phone.</em>
Option C
Answer:
Check the explanation
Step-by-step explanation:
Kindly check the attached images below to see the step by step explanation to the question above.
