you ask 70 of your classmates if they have any siblings complete the two way frequently table to shows the results of the survey
I will answer in the attached image
Please see the attached image
Please wait a minute
step 1
Find the value of 25
40-15=25
step 2
Find the value of 45
20+25=45
step 3
Find the value of 10
25-15=10
step 4
Find the value of 30
20+10=30
step 5
Find the value of 70
25+45=70
and
40+30=70