The formula for the confidence interval is given by
Sample mean + z*[σ/√n], and
Sample mean - z*[σ/√n]
We have:
Sample mean = 23.95
n = 40
σ = 2.55
z* for 99% confidence = 2.58
Substitute these values into the formula, we have
23.95 + (2.58)(2.55÷√40) = 24.99
23.95 - (2.58)(2.55÷√40) = 22.91
So the lower interval is 22.91 and the highest interval is 24.99
O=2a+2,
o/2-a/2=4 this is your system of equations,
It you wish to solve for apples, then simply substitute o from the first equation into the second equation...
(2a+2)/2-a/2=4 multiply both sides of the equation by 2
2a+2-a=8 combine like terms on the left side
a+2=8 subtract 2 from both sides
a=6
So Javier has 6 apples in the basket.
Answer: number 1 2 and four are correct
Step-by-step explanation:
I DID THE SAME THING
Answer:
262144
Step-by-step explanation:
its exponents
Answer:
$200
Step-by-step explanation:
Fine calculated per mile = $10
Fine calculated for 'm' mile = 10 * m = 10m
Cost paid by violator = 80 + 10m
m = 12 miles
Cost paid by the violator = 80 + 10*12
= 80 + 120
= $ 200
