Answer
$Mean=87.05~grams$
$Median=87.05~grams$
$Mode=87.0~grams~and~87.2~grams$
Work Step by Step
In ascending order: 86.8, 87.0, 87.0, 87.1, 87.2, 87.2
$Mean=\frac{86.8+87.0+87.0+87.1+87.2+87.2}{6}=87.05$
There are 6 observations. So, the median is the mean between the third and the fourth observations:
$Median=\frac{87.0+87.1}{2}=87.05$
Both of the values 87.0 and 87.2 appear twice. They are the mode.
