Answer: 271
Step-by-step explanation:
As per given description in the question, we have
Critical value for 90% confidence interval = 
[using z-value calculator ]
Margin of error : E= 0.05
Since prior estimate of population proportion is unknown so we take p= 0.5
Formula we use to find the sample size :
[we assume p= 0.50]
i.e. 
Simplify :
Therefore , the minimum sample size required = 271
Answer:
(A) Incoming students at a particular university.
Step-by-step explanation:
In Mathematics, population is defined as a discrete group of people, animals or things that can be identified by at least one common characteristics for the purpose of data collection and analysis.
In this question incoming students are classified as a population as they share common characteristic of being new to this particular university.
<span>given tan theta 4/3 and sin (-4/5), find cos theta
cos theta-3/5</span>
