Answer: The value of A is -2.
Step-by-step explanation:
Since we have given that
We need to change it in the form of Ax+By.
So, it becomes,
Now, we will equate this with Ax+By:
By comparing the coefficient of x and y:
Hence, the value of A is -2.
-2
becasue we
-2x-4y
-2 = A
Swimming Running Volleyball Row totals
Grade 8 0.14 0.18 0.22 0.54
Grade 9 0.17 0.24 0.05 0.46
Column totals 0.31 0.42 0.27 1
Based on the data, which statement is most likely correct?
In Grade 8, 14 students liked swimming.
In Grade 9, 31% of students liked swimming.
In Grade 8, 22% of students liked volleyball.
In Grade 9, 5 students liked volleyball.
Answer:
In Grade 8, 22% of students liked volleyball.
Step-by-step explanation:
Given:
The table representing the relative frequencies of different sports in different grades among the students.
Swimming Running Volleyball Row totals
Grade 8 0.14 0.18 0.22 0.54
Grade 9 0.17 0.24 0.05 0.46
Column totals 0.31 0.42 0.27 1
Relative frequency givesthe ratio of the number of quantities of a particular kind and the total number of quantities.
From the above table, we can conclude the following points:
Grade 8:
14% liked swimming, 18% liked running and 22% liked volleyball. So, a total of 54% students liked playing sports.
Grade 9:
17% liked swimming, 24% liked running and 5% liked volleyball. So, a total of 46% students liked playing sports.
Combining students of grade 8 and 9:
31% liked swimming, 42% liked running and 27% liked volleyball.
From all the options available, we observe that, third option is only correct.
In Grade 8, 22% of students liked volleyball.
Answer:
It should be 4.