Question

a survey asked a group of adults and youths if they prefer reading books printed on paper or electronic books. results are shown in the table below, but some values are missing. fill in the missing values.

book preference

	print	electronic	total
adults		29
total	66

Explanation:

Step1: Calculate Youths' Total

To find the total number of youths, we add the number of youths who prefer print and electronic books. So, \( 29 + 26 = 55 \).

Step2: Calculate Adults' Print Preference

The total number of people who prefer print is 66. Subtract the number of youths who prefer print (29) from this total. So, \( 66 - 29 = 37 \).

Step3: Calculate Total Electronic Preference

Add the number of youths and adults who prefer electronic books. So, \( 26 + 29 = 55 \).

Step4: Calculate Adults' Total

Add the number of adults who prefer print and electronic books. So, \( 37 + 29 = 66 \).

Step5: Calculate Overall Total

Add the total number of people who prefer print and electronic books. So, \( 66 + 55 = 121 \). Also, we can add the total number of youths and adults: \( 55 + 66 = 121 \), which confirms the result.

Answer:

• Youths' Total: \( \boldsymbol{55} \)
• Adults' Print: \( \boldsymbol{37} \)
• Adults' Total: \( \boldsymbol{66} \)
• Total Electronic: \( \boldsymbol{55} \)
• Overall Total: \( \boldsymbol{121} \)

Filled table:

	Print	Electronic	Total
Adults	37	29	66
Total	66	55	121