Answer:
<h2>Biased.</h2>
Step-by-step explanation:
The research is aimed to find if students would choose engineering as their profession.
So, according to the problem, the researcher chose the same number of male students and female students. In that case, the research would be biased. If the researcher chooses the same number of boys and girls, one group will be overrepresented, because in a school, there aren't the same number of male students and females students, that would be a perfect case which doesn't happen in real life.
So, the equivalence of the sample will bias the study, because it would misrepresented the real situation.
Therefore, the sample is biased.
Answer:
2/3
Step-by-step explanation:
Total number of marbles = 3 + 4 + 5 = 12
Pr (red marble) 3/12
Pr (Blue marble) = 4/12
Pr (white marble) = 5/12
Probability of drawing either a red or a white marble
= Pr ( red) + Pr (white)
= 3/12 + 5/12
= 8/12
= 2/3
Using the Pythagorean Theorem, do a^2 + b^2 = c^2. The biggest number has to be the hypotenuse, so 10.7 would be the hypotenuse. Therefore, 5.5^2 and 3.2^2 have to equal 10.7^2.
To start, find the square of both 5.5 and 3.2.
5.5^2 = 30.25
3.2^2 = 10.24
Now add them together to give you:
30.25 + 10.24 = 40.49.
Finally, find the square root of 40.49. If it is 10.7, then the 3 measurements can be side lengths. If not, they cannot all be side lengths.
This yields <span>6.36317530797. Since this is NOT 10.7, the 3 measurements cannot be side lengths of a triangle.
Hope this helps! :)</span>
Answer:
x=9
Step-by-step explanation:
Answer:
not answerable
Step-by-step explanation: