Which of the following is true about all Normal distributions? O The points at which the curvature changes from "up" to "down" (the points of inflection) are at the first and third quartiles of the distribution
There is no area under the curve for Z-scores greater than 3.49.
O The area underneath the curve is equal to 1
About 68% of the values of the variable are more than one standard deviation away from the mean.
The mean is usually greater than the median.

a

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

if im not mistaking its

step-by-step explanation: