Question 1. How do I average a column that contains a mixture of numbers and
less than entries?
e.g. 12
<1
10
<5

Question 2. Is it possible to include the less than values in the average
calculation (i.e so excel ignores the less than sign and calcualted the
avearge using the number that is next to the less than sign)?

Question 3. Is it possible to include some less than values (e.g. <10) in
the average calculation but ignore say other less than values (e.g. <100)?

Thank you!