Consider the following data:
19 10 9 8 14 11 11 12 11 9 19 19 17 10 13 18 16 17 5 14 11 15 18 12 8 7 10 16 2 12
Construct a frequency distribution by making the class width 3 and the lower limit of the first class 2. The dataset above is the marks obtained in the previous class test out of 20.
Define the random variable
a) marks
b)out of 20
c) class test
d)class average
a) marks - The values in the dataset represent the marks obtained in the class test out of 20.
b) out of 20 - This refers to the total marks possible in the class test, which is 20.
c) class test - This refers to the examination or test that was conducted in the class to evaluate the students' understanding and knowledge.
d) class average - This would refer to the average marks obtained by all the students in the class test, which can be calculated by summing up all the marks and dividing by the number of students.