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masha68 [24]
3 years ago
5

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

ents height
Mathematics
2 answers:
MAVERICK [17]3 years ago
4 0
<span>variance of </span>950 students
mixas84 [53]3 years ago
4 0

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

             =\frac{77}{950}------P

Probability of Failure ,that is choosing a student from , 950-77=873, students

        =\frac{873}{950}-----Q

\text{Variance}(\sigma)^2=\sqrt{NPQ}\\\\=\sqrt{950 \times \frac{77}{950}\times \frac{873}{950}}\\\\=\sqrt{873 \times \frac{77}{950}}\\\\=70.7589

Approximately ,70 or 71 Students refer to the variance of of the students height.

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