If the mean of 2.3, 2.4, 4.2, 2.6, x, 4.3, 4.4 is 2.9, find x.
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Answer:
0.1
Step-by-step explanation:
mean=sum of all no./total no. of numbers
2.9=(2.3+2.4+4.2+2.6+x+4.3+4.4)/7
2.9×7=(20.2+x)
20.3=20.2+x
20.3-20.2=x
0.1=x
therefore x=0.1
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