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ipn [44]
3 years ago
13

National polls are often conducted by asking the opinions of a few thousand adults nationwide and using them to infer the opinio

ns of all adults in the nation. explain who is in the sample and who is in the population for such polls. please use a poll from a newspaper, tv, a magazine, or from the internet.
Mathematics
1 answer:
Valentin [98]3 years ago
5 0

Answer:

Sample: few thousand adults

Population: all the adults

Step-by-step explanation:

A sample is a subset of the population, selected randomly.

In this case:

The sample consist of the few thousand adults selected to determine the opinions about the National polls.

The population consist of all the adults belonging to the said nation.

Consider an example about the new President election.

To determine which of the two candidates (say <em>A</em> and <em>B</em>) has a higher probability of winning the President election, the election society took a random sample of voters and asked who they think will be a better president.

The sample selected will be large enough, probably 10% of the population of all voters.

From this study it can be estimated which candidate has the higher chance of winning.  

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A square has a area of 470.89m^2 work out the perimeter of the square
Nadusha1986 [10]

Answer:

221737.392

Step-by-step explanation:

All you need to do for this is multiply 470.89 x 470.89 and then the answer you get is 221737.392 meters. Hope this helps :)

7 0
2 years ago
Find x. Round your answer to the nearest tenth of a degree.
Paha777 [63]

Answer:

x = 50.5°

Step-by-step explanation:

Use SOH CAH TOA... Since the adjacent and hypotenuse are given, you must use cosine.

cos(x) = 14/22

cos^-1 (14/22) = 50.5°

3 0
2 years ago
Determine whether the data described below are qualitative or quantitative and explain why.The shoe sizes left parenthesis such
Igoryamba

Answer:

B.The data are quantitative because they consist of they consist of counts or measurements.

Step-by-step explanation:

Qualitative data are those data which does not include any number. The data which has characteristic is known as Qualitative data.

Quantitative data are those data which include numbers.

Since the data of shoe sizes include numerical value. Thus it is Quantitative Data.

7 0
3 years ago
If sin Θ = 2 over 3 and tan Θ &lt; 0, what is the value of cos Θ?
guapka [62]
If sin Θ is positive and tan Θ is negative, then the angle should be in the second quadrant using the rule of thumb. In this case, cos Θ is expected to be negative. Using the calculator, the answer is -0.7454. This is equivalent to option D. <span>negative square root of 5 over 3</span>
6 0
3 years ago
Read 2 more answers
Please Help !!!!
swat32
The answer is A. Here's the equation graphed and shows why the answer is A

8 0
3 years ago
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