2. Following are the marks obtained by a batch of 10 students in a certain class tests in statistics (X) and accountancy (Y).
1 2
Roll No.
3 4
5 6 7 8 9 10
X 63 64 62 32 30 60 47 46 35 28
Y 68 66 35 42 26 85 44 80 3372
In which subject is the level of knowledge of the students higher?

Students level of knowledge is higher in accountancy  (Y) compared to statistics (X).

Step-by-step explanation:

The level of knowledge of the students in each subject can be known by comparing the mean score of the subjects.

Marks of the students in statistics (X) are: 63 64 62 32 30 60 47 46 35 28

mean =

          =

          = 46.7

The mean mark of students in statistics (X) is 46.7.

Marks of students in accountancy (Y) are: 68 66 35 42 26 85 44 80 33 72

mean =

         =

         = 55.1

The mean mark of students in accountancy (Y) is 55.1.

It can be inferred that students level of knowledge is higher in accountancy  (Y) compared to statistics (X).

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.