Answer:15/2
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Initial mean = 156, Changed mean = 163.92
So, mean increases. Only condition that satisfies this is B.
The range would only include positive numbers.
Answer:
12 x 2.5 = 30
Step-by-step explanation:
Answer:
C = 13
Step-by-step explanation:
+
= 
+
= 169
= 13