Fill in the blanks with the correct symbol to make each statement true. Use +,-, x, divide or parentheses to obtain the given so
1 answer:
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The parameter of interest in this scenario is the proportion of all 1,000 students within the school who have "strict" parents or guardians.
<h3>How to calculate a test statistic?</h3>In Mathematics, the test statistics of a given sample is calculated by using this formula:
<u>Where:</u>
- x is the sample mean.
- u is the mean.
- is the standard deviation.
- n is the sample size.
In conclusion, a possible test statistic which can be used to estimate this parameter is the proportion of all students who have "strict" parents or guardians, based on the collected sample.
Read more on test statistic here: brainly.com/question/4621112
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Answer:
<u>60</u> students are involved in either band or sports.
<u>95</u> students are not involved in either sports or band.
Step-by-step explanation:
Given:
In a school of 320 students, 85 students are in the band, 200 students are on sports teams, and 60 students participate in both activities.
Now, to find the students are involved in either sports or band. And students who are not involved in either sports or band.
<em>Total number of students</em> = 320.
Number of students in the band = 85.
Number of students in the sports team = 200.
Number of students participate in both activities = 60.
Thus, 60 students are involved in either band or sports.
So, the number of students in the band adding number of students in the sports team we get:
200 + 85 = 285.
Then, to subtract the number of students participate in both activities we get:
285 - 60 = 225.
<em>Thus, the remaining students are </em>= 225.
Now, to get the students who are not involved in either sports or band we subtract the total number of students from the remaining students:
Therefore, 60 students are not involved in either band or sports. 95 students are not involved in either sports or band.