Question

homework due monday, 11/10/2025
jada surveyed all 7th and 8th graders at her school about whether they have pets. complete
the missing entries in this two - way table.

complete the diamond problems. the top cell contains the product (multiply) of the numbers in
the left and right cells, while the bottom cell contains the sum (add).
(15)
(16)
(19)
(20)

Explanation:

Step1: Find the number of 7th - graders with no pet

Use the formula: \( \text{has no pet (7th grade)}=\text{total (7th grade)}-\text{has pet (7th grade)}\)
\(150 - 102=48\)

Step2: Find the number of 8th - graders with pet

Use the formula: \( \text{has pet (8th grade)}=\text{total (8th grade)}-\text{has no pet (8th grade)}\)
\(175 - 68 = 107\)

Step3: Find the total number of students with pet

Use the formula: \( \text{total (has pet)}=\text{has pet (7th grade)}+\text{has pet (8th grade)}\)
\(102+107 = 209\)

Step4: Find the total number of students with no pet

Use the formula: \( \text{total (has no pet)}=\text{has no pet (7th grade)}+\text{has no pet (8th grade)}\)
\(48 + 68=116\)

Step5: Find the grand - total

Use the formula: \( \text{grand - total}=\text{total (7th grade)}+\text{total (8th grade)}\)
\(150+175 = 325\)

Answer:

	has pet	has no pet	total
8th grade	107	68	175
total	209	116	325