We know, Area of a Circle = πr²
A = 3.14 * (0.8)²
A = 2 m²
For 1 m², it costs = 4.60
So, for 2 m², it would be: 4.60 * 2 = 9.20
In short, Your Answer would be $9.20
Hope this helps!
Answer:
230
Step-by-step explanation:
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Answer:
b
Step-by-step explanation:
Answer:
-9
Step-by-step explanation:
The probability the sample mean is more than 10 words for a random sample of 39 messages is 2.12%
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
The z score is given by:
z = (raw score - mean) / (standard deviation / √sample size)
Given mean of 8.6 words and a standard deviation of 4.3 words. If a random sample of 39 messages, hence, for x > 10:
z = (10 - 8.6) / (4.3 / √39) = 2.03
P(x > 10) = P(z > 2.03) = 1 - P(z < 2.03) = 1 - 0.9788 = 0.0212
The probability the sample mean is more than 10 words for a random sample of 39 messages is 2.12%
Find out more on equation at: brainly.com/question/2972832
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