Answer:
The sample size is 
Step-by-step explanation:
From the question we are told that
The population proportion is 
The margin of error is 
Given that the confidence level is 90%
Then the level of significance can be mathematically represented as
Next we obtain the level of significance from the normal distribution table the value is
Generally the sample size is mathematically represented as
![n = [ \frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * p(1- p )](https://tex.z-dn.net/?f=n%20%20%3D%20%5B%20%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%7D%7BE%7D%20%5D%5E2%20%2A%20%20p%281-%20p%20%29)
substituting values
![n = [ \frac{1.645 }{0.04} ]^2 * 0.45(1- 0.45 )](https://tex.z-dn.net/?f=n%20%20%3D%20%5B%20%5Cfrac%7B1.645%20%7D%7B0.04%7D%20%5D%5E2%20%2A%20%200.45%281-%200.45%20%29)
Answer:
A = 3.14
Step-by-step explanation:
Area = π r^2
Circumference = 2π r
- A = C^2/4π
- 6.28^2/4•π ≈ 3.13841
When accessing your credit card information online, you cannot makes purchase.
<h3>What is credit card?</h3>
A credit card is a card that enables a card holder to buy or purchase things online on credit.
A credit card holder can carryout the following when accessing their credit card data online:
- See their statements
- View their balance
- View their bill due dates
Therefore the correct option is C.
Learn more about credit card here:brainly.com/question/6872962
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Answer: On a graph it is the point where the line crosses through the y axis
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
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