Answer:
9
Step-by-step explanation:
I think it would be D, because you would divide the 1/8 be 5, giving you 1/40
Either B or D I’m not really sure but I know it’s one of this answers
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%.