Answer:
And the best option would be:
c. 1450 +/- 12
Step-by-step explanation:
Information provided
represent the sample mean for the SAT scores
population mean (variable of interest)
represent the sample variance given
n=25 represent the sample size
Solution
The confidence interval for the true mean is given by :
(1)
The sample deviation would be 
The degrees of freedom are given by:
The Confidence is 0.954 or 95.4%, the value of 
and 
, assuming that we can use the normal distribution in order to find the quantile the critical value would be 
The confidence interval would be
And the best option would be:
c. 1450 +/- 12
10nCr6 over 6nCr3 this should give you the answer
Answer: 35000π cm.
Step-by-step explanation:
First find circumference
Circumference = 2 × π × radius
Circumference = 2 × π × ( diameter / 2 )
Circumference = 2 × π × ( 35 / 2 )
Circumference = 35 × π cm
Now,
1 revolution = 1 circumference
1000 revolution = 1000 circumference
1000 revolution = 1000 × (35 × π)
1000 revolution = 35000π cm.
Answer:
x= -7
Step-by-step explanation:
have a good day
