If a sample of 77 students were taken from a population of 950 students, o^2 could refer to the variance of how many of the stud
2 answers:
Answer with explanation:
Sample of Students Chosen =950----N
Total Number of students = 77
Probability of choosing a student from 77 students, that is Probability of Success
Probability of Failure ,that is choosing a student from , 950-77=873, students
Approximately ,70 or 71 Students refer to the variance of of the students height.
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Answer:
Step-by-step explanation:
This is written in the standard form of a quadratic function:
where:
- ax² → quadratic term
- bx → linear term
- c → constant
You need to convert this to vertex form:
where:
- (h,k) → vertex
To find the vertex form, you need to find the vertex. For this, use the equation for axis of symmetry, since this line passes through the vertex:
Using your original equation, identify the a, b, and c terms:
Insert the known values into the equation:
Simplify. Two negatives make a positive:
X is equal to 3 (3,y). Insert the value of x into the standard form equation and solve for y:
Simplify using PEMDAS:
The value of y is -6 (3,-6). Insert these values into the vertex form:
Insert the value of a and simplify:
:Done