The values 104, 137, 154, 131, and a 5th number have a mean of 130. What’s the missing number?
Answer:
\(x=124\)
Explanation:
Remember that the mean can be found by summing the values and dividing by the count of the values:
which gives us:
\(130=\frac{104+137+154+131+x}{5}\)
\(650=526+x\)
\(x=124\)