Concept explainers
Evaluate each expression.
a. 5C2
b. 8C3
c. 7C4
d. 6C2
e. 6C4
a.
The value of
Answer to Problem 33E
The value of
Explanation of Solution
Calculation:
Combinations:
A combination is an arrangement of n objects in r ways where the order of arrangement is not considered.
Where, n is the total number of objects and r is number of ways in which n objects can be selected.
Substitute n as 5 and r as 2.
Thus, the value of
b.
The value of
Answer to Problem 33E
The value of
Explanation of Solution
Calculation:
Substitute n as 8 and r as 3.
Thus, the value of
c.
The value of
Answer to Problem 33E
The value of
Explanation of Solution
Calculation:
Substitute n as 7 and r as 4.
Thus, the value of
d.
The value of
Answer to Problem 33E
The value of
Explanation of Solution
Calculation:
Substitute n as 6 and r as 2.
Thus, the value of
e.
The value of
Answer to Problem 33E
The value of
Explanation of Solution
Calculation:
Substitute n as 6 and r as 4.
Thus, the value of
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Chapter 4 Solutions
Elementary Statistics: A Step By Step Approach
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