Answer:
D. A random sample
Step-by-step explanation:
The answer to your question is D. A random sample because this sampling type is people being randomly selected from the population. We can also rule out the other options because of the following reasoning:
[✗] A. A convenience sample
-> This is a good contender, but as she is not asking everyone and the sample is <em>for</em> the school, it would not make sense to ask people near her house for example, we can say that this probably is not the best option.
[✗] B. A self-selected sample
-> This type is more like a poll, people volunteer for a self-selected sample, while here they are being asked
[✗] C. A systematic sample
-> Every so often she is asking students questions, she does not have a set number of how often or of the population (that we know of)
[✓] D. A random sample
-> This option is correct as stated above. She is randomly picking people.
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Okay i'm confused on the question but i do know the answer of the diameter
if that help the diameter would be d=5.09cm
i hope this helps
40% = 40/100 = 0.4
320 * 0.4 = 128 ← answer
Let's say you have 20 friends over. 6 more are coming over. And they all want 3 slices of pizza.
So to figure out how many slices of pizza you would need, you'd use this equation: 3•(20+6)