can someone please help me$.$ I$\text{'}$m confused on what to do

Required information

$[$The following information applies to the questions displayed below.$]$

An air$-$conditioning repair department manager has compiled data on the primary reason for $41$ service calls

for the previous week, as shown in the table.

Key: Problem type:

Customer type:

$N=$ Noisy

$F=$ Equipment

$W=$ Ruilure

$O=$ Odor warm

a$.$ Using the data, prepare a check sheet for the problem types for each customer type.

$(1)$ Residential customer type

$(2)$ Commercial customer type