Answer:
Step-by-step explanation:
Given that the chocolate factory "Charlie’s own" produces limited-time boxes with exactly 9 chocolates.
X is the weight of chocolate
X is N (5, 0.3) (since variance = 0.09, std dev =sqrt of variance = 0.3)
Probability for the box to weight <42.75 =
P(X<42.75)
=
Or 0.62% of boxed weigh <42.75
Answer:
point (0, 4.5)
point (-6, 0)
point (1 , 5.25)
Step-by-step explanation:
The first step is to introduce values of x to the function to obtain three points that belong to the equation 
x = 0
point (0, 4.5)
y = 0
point (-6, 0)
x = 1
point (1 , 5.25)
The graph of the function is shown in the attached image
Correct Option:Option B
Solution:The given expression is:
cos(3x) can be written as cos(2x +x). Expanding it, we get:
Using this value of cos(3x) in given equation, we get:
Answer:
$40
Step-by-step explanation:
$1 for $5
$? for $200
= 200*1/5
Answer:
A. there is a 99% probability that μ is between 3 and 9.
Step-by-step explanation:
From a random sample, we build a confidence interval, with a confidence level of x%.
The interpretation is that we are x% sure that the interval contains the true mean of the population.
In this problem:
99% confidence interval.
6 ± 3.
So between 6-3 = 3 and 6 + 3 = 9.
So we are 99% sure that the true population mean is between 3 and 9.
So the correct answer is:
A. there is a 99% probability that μ is between 3 and 9.
