Answer:
Convert the age to a z-score:
Step-by-step explanation:
Let X be the random variable with mean 27.2 and standard deviation 3.8.
Here, the observation, x is 24.
Four to the second power is just 4^2 which is equal to 16 (4*4 = 16)
Four the the eight power is just 4^8 which is equal to 65536 (4*4*4*4*4*4*4*4 = 65536)
Brianna's thinking is incorrect.
Expessions A, and C. are equivalent.
For C, you add 5x and x together (because they have the same variable) to get 6x - 4.
For A, you subtract 9x and 3x (because they have the same variable) to get 6x- 4.
5/100=0.05
0.05*45.90=2.295
$2.30 is the tax. Feel free to correct this If wrong.
