Answer :
Answer:
(A) the specific number of siblings for each randomly selected student
Step-by-step explanation:
First Timothy wants to estimate the mean number of siblings for each student in his school
So he selected a random sample of 75 students, then recorded the number of siblings they have
He later find the mean.
You can see the mean was obtained from the selected group not all students in the school hence option D and E are not correct.
Option A clearly indicates a mean was obtained for the siblings that were from the randomly selected students.
The statistic for the given survey is; C: the mean number of siblings for the randomly selected students
What is the statistic?
We are given;
Sample size; n = 75
Now, when dealing with hypothesis, research, survey and experiment in maths, there is what we call test statistic and it is defined as a number calculated from the statistical test. This statistic is one that shows how closely our observed data matches the distribution expected under the null hypothesis of that statistical test.
Thus, we can say that the statistic here in this question is the mean number of siblings for the randomly selected students
Read more about statistic at; https://brainly.com/question/14470673