twenty students in class a and 20 students in class b were asked how many hours they took to prepare for an exam. the data sets represent their
answers
class a (2,5,7,6,4,3,8.7.4,5,7,6,3,5, 4.2.4.6.3.5)
class b. (3.7.6. 4.3.2.4,5,6,7.2.2.2.3, 4.5, 2, 2.5,6)
which statement is true for the data sets?
a.
the mean study time of students in class a is less than students in class b.
b.
the mean study time of students in class b is less than students in class a
c.
the median study time of students in class b is greater than students in class a
d.
the range of study time of students in class a is less than students in class b
e.
the mean and median study time of students in class a and class b is equal

The answer from the given option is The mean study time of students in class B is less than the students in class A.

Explanation:

There are three types of mean:

Here in class A,  

  Mean in class A = (2+5+7+6+4+3+8+7+4+5+7+6+3+5+4+2+4+6+3+5) / 20

                                = 4.8.

  Mean in class B = (3+7+6+4+3+2+4+5+6+7+2+2+2+3+4+5+2+2+5+6) / 20

                                = 4.

Hence mean study time of class B is less than the mean study time of class A.

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

the body's situation won't change the forces are equal opposit and on the same body