Time limit: 0

0 of 6 questions completed

Questions:

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Quiz complete. Results are being recorded.

0 of 6 questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 point(s), (0)

Earned Point(s): 0 of 0, (0)

0 Essay(s) Pending (Possible Point(s): 0)

- Not categorized 0%

- 1
- 2
- 3
- 4
- 5
- 6

- Current
- Review
- Answered
- Correct
- Incorrect

- Question 1 of 6
##### 1. Question

Suppose a school runs class one to class twelve and every class has a maximum capacity of 60 students. Each class offers maximum 8 courses in a year. The school wants to store all the data of the obtained marks by the students for 2 exams of a year in this array size form:

size(marks) =

*(num_class, num_course, num_exam, num_students)*Which is actually (12, 8, 2, 60)

Based on this assumption answer the following questions.

**How to calculate sum of marks for each student in the year (in all subjects and exams)?**CorrectIncorrect - Question 2 of 6
##### 2. Question

**What is mean mark obtained by any student in course number 5 ?**CorrectIncorrect - Question 3 of 6
##### 3. Question

**How to calculate standard deviation of numbers for each class?**CorrectIncorrect - Question 4 of 6
##### 4. Question

**How to get variance of numbers for all students of school?**CorrectIncorrect - Question 5 of 6
##### 5. Question

**Let,****How to get covariance matrix cov78 of the marks of class 7 and 8 with normalized by observation numbers?**CorrectIncorrect - Question 6 of 6
##### 6. Question

**What is the actual covariance in the matrix cov78 (see previous question)?**CorrectIncorrect