Question

a survey stopped men and women at random to ask them where they purchased groceries, at a local grocery store or online.

• 28 women said they shopped at a local grocery store.
• 45 women were surveyed.
• 45 men were surveyed.
• 28 total people said they shopped online.

fill in the missing values in the table below.
grocery options

	store	online	total
women	\square	\square	\square
men	\square	\square	\square
total	\square	\square	\square

Explanation:

Step1: Fill in the known values

We know that 28 women shopped at the store, 45 women were surveyed, 45 men were surveyed, and 28 total people shopped online.

• Women's total: 45
• Women - Store: 28
• Men's total: 45
• Total - Online: 28

Step2: Calculate women - online

Since women's total = women - store + women - online, then women - online = 45 - 28 = 17.

Step3: Calculate total people surveyed

Total people surveyed = women's total + men's total = 45 + 45 = 90.

Step4: Calculate total - store

Since total people surveyed = total - store + total - online, then total - store = 90 - 28 = 62.

Step5: Calculate men - store

Since total - store = women - store + men - store, then men - store = 62 - 28 = 34.

Step6: Calculate men - online

Since men's total = men - store + men - online, then men - online = 45 - 34 = 11.

Answer:

Grocery Options	Store	Online	Total
Men	34	11	45
Total	62	28	90