Answer:
C
Step-by-step explanation:
Finding the z-score:
z = (x - μ) / σ
z = (66 - 57) / 9
z = 1
Using a z-score table or calculator:
P(z < 1) = 0.8413
84.13% of 4000 is:
0.8413 (4000) = 3365.2
Rounding up to the nearest whole number, approximately 3366 students will score less than 66. Answer C.
Answer:
D
Step-by-step explanation:
none of the others make sense
42, because 1/6 of 42 is seven. I could be wrong but I think this is the correct answer
Answer:
i think the answer is c
Step-by-step explanation:
Answer:
Step-by-step explanation:
