The mean of 1 3 5 7 and x is 4 Find the value o... - WAEC Mathematics 2018 Question
The mean of 1, 3, 5, 7 and x is 4. Find the value of x
A
2
B
4
C
6
D
8
correct option: b
Mean = \(\frac{\sum x}{n}\)
4 = \(\frac{1 + 3 + 5 + 7 + x}{5}\)
4 x 5 = 16 + x
20 - 16 = x
4 = x
x = 4
Please share this, thanks:
Add your answer
No responses