if xi 's are the mid points of the class interval of grouped data,

fi 's are the corresponding frequinces
and
x^u is the mean,
then (sum of) fi( xi-x^u) is?

Similar Questions

Confidence interval interpretationEvery day, I try to estimate an unknown parameter using a fresh data set. I look at the data
1. 1 answer
A set of data has a normal distribution with a mean of 49 and a standard deviation of 8. Find the percent of data within the
1. 3 answers
What is the term for data that are grouped closely together?• outlier • linear • positive • clustering
1. 1 answer
Select the correct locations on the graph.There are 10 students in Jenna’s skating class. The data gives the ages and the
1. 1 answer