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Answer: A B
Group A 0.25 0.75
Group B 0.45 0.55
Step-by-step explanation:
Since we have given that
Number of people of A in Group A = 15
Number of people of B in Group A = 45
Number of people of A in Group B = 20
Number of people of B in Group B = 25
Total number of people in Group A = 15+45 = 60
Total number of people in Group B = 20+25 = 45
So, Relative frequencies will be given below:
Relative frequency of A in Group A is given by
Relative frequency of B in Group A is given by
Relative frequency of A in Group B is given by
Relative frequency of B in Group B is given by
Hence, A B
Group A 0.25 0.75
Group B 0.45 0.55
The expression is an illustration of the summation notation
The expanded form of the summation notation is 0^4 + 1^4 + 2^4 + 3^4+4^4
The summation notation is given as:
The above summation notation represents the sum of the numbers raise to the power of 4, from 0 to 4
So, we have:
Hence, the expanded form of is 0^4 + 1^4 + 2^4 + 3^4+4^4
Read more about summation notation at: