Question

2. In the table below, the xi column shows scores on the aptitude test and yi column shows
statistics grades.
Student
X
У.
1
95
85
2
85
95
3
80
70
4
70
65
5
60
70

Answer 1

Explanation:

Answer:

mendeleeves periodic table states that physical and chemical properties of elements are based on their atomic weight iodine is placed after the tellurium even the atomic mass of iodine is less than atomic mass of tellurium

atomic no. of I = 53

mass= 126.9

atomic number of Te = 5e

mass = 127.6