The second phase of inferential statistics is A. Data organization and analysis
B. Probability-based inference
O C. Data gathering
D. Design

Use statistical inference. Sampling: – Decide how to select the sample. – Collect the sample data. Analysis: – Describe the sample data, using graphs and numerical summaries.Since in most cases you don't know the real population parameter, you can use inferential statistics to estimate these parameters in a way that takes sampling error into account. There are two important types of estimates you can make about the population: point estimates and interval estimates

Step-by-step explanation:

option: d is correct

step-by-step explanation:

the answer is option a you would get more money.it would be $250.

step-by-step explanation:

for option b 200/2=100=50% 100/2=50=25% 50/5=10=5% it would be $220