Answer:
26.3 cm³
Step-by-step explanation:
![\boxed{volume = \frac{mass}{density} }](https://tex.z-dn.net/?f=%5Cboxed%7Bvolume%20%3D%20%20%5Cfrac%7Bmass%7D%7Bdensity%7D%20%7D)
Volume of the rod
= 200 ÷7.6
= 26.3 cm³ (3 s.f.)
Answer:
The standard deviation reduces when sample size (n) increases
Step-by-step explanation:
From the above information given, we have that mean = 75.5
Standard deviation = 3.5
But Standard deviation = √summation (x-u)/n
This simply implies that when sample (n) is increased there would be a reduction in the standard deviate.
Answer: The perimeter is 40.1
Step-by-step explanation: This is because a perimeter is just all the sides added up so 8+4+4+4.5+5.6+14 which is 40.1
Hope this helps and have a nice day
Answer:
mask
Step-by-step explanation: