Answer:
40%
Step-by-step explanation:
18+12+20=50
20/50×100=
40%
Your final answer is going to be 4r + 3r ^2 +7
This problems needs an image!!
A is the answer because it does not repeat any of the x numbers
Answer:
E. 99.7%
Step-by-step explanation:
Calculate each z-score.
z = (x − μ) / σ
z = (173 − 128) / 15
z = 3
z = (x − μ) / σ
z = (83 − 128) / 15
z = -3
You can use a z-score table, or use the empirical rule.
P(-3 < z < 3) = 99.7%.
