A school for learning foreign languages has 72 students who learn German, and 54 of those students also learn Russian. There are
12 students who do not learn German but learn Russian, and 10 students do not learn either German or Russian. Which table best shows the conditional relative frequency of rows for the data?
2 answers:
<h2>Answer with explanation:</h2>
The conditional relative frequency of rows:
It is the relative frequency corresponding to each row.
It is obtained when we divide each entry of each row by it's corresponding row total.
It is given that:
- A school for learning foreign languages has 72 students who learn German, and 54 of those students also learn Russian.
This means that the sum of the first column i.e. who learn German is: 72
and first entry of first row is: 54
Hence, first entry of second row is: 72-54=18
- There are 12 students who do not learn German but learn Russian.
This means that the second entry of first row is: 12
- 10 students do not learn either German or Russian.
This means that the second entry of second row is: 10.
- Sum of first row is: 54+12=66
- Sum of the second row is: 18+10=28
- Total sum is: 66+28=94
- Sum of the second column is: 10+12=22
The FIRST TABLE is the answer.
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<u><em>x=3.4</em></u>
Step-by-step explanation:
Use the Pythagorean theorem:
a and b are the legs and c is the hypotenuse (x)*
Insert the values:
Simplify exponents
Simplify addition:
Find the square root:
Finito.
*The hypotenuse is the side opposite the 90° angle and the longest side of a triangle, always.