Answer:
And the 90% confidence interval would be given (0.773;0.827).
Step-by-step explanation:
The information given is:
represent the number of individuals with the characteristic
the sample size
The confidence interval would be given by this formula
For the 90% confidence interval the value of and , the critical value for this case is:
And replacing into the confidence interval formula we got:
And the 90% confidence interval would be given (0.773;0.827).
Answer:
(1,2)
Step-by-step explanation:
y = 2x. y = -x+3
Set the two equations equal
2x = -x+3
Add x to each side
2x+x = -x+x+3
3x = 3
Divide by 3
3x/3 = 3/3
x = 1
Now find y
y =2x = 2(1) = 2
(1,2)
Answer:
Step-by-step explanation:
Stephan can run
3 miles in 15.75 minutes
1 miles in 15.75/3 minutes
1 miles in 5.25 minutes
Kelsha can run
5 miles in 226 minutes
1 miles in 226/5 minutes
1 miles in 45.2 minutes
Stephan can run faster, since 5.25 < 45.2
Answer:
40πcm
Step-by-step explanation:
circ = 2πr
if d = 40cm
r = 20cm
∴ c = 2×π×20
= 40πcm
= 125.66cm
Answer:
Step-by-step explanation:
number one is 10
number two is (c) they have the same median