Answer:
B
Step-by-step explanation:
I'm not sure if it's right but you can try it
Answer:
C!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
Have a good day UvU
Answer:
t ≥ 96 test score must be 96 or greater
Step-by-step explanation:
Let t - score on his third test
(75 + 81 + t) ÷ 3 ≥ 84
⇒ (75 + 81 + t) ≥ 84 x 3
⇒ (75 + 81 + t) ≥ 252
⇒ 156 + t ≥ 252
⇒ t ≥ 252 - 156 ≥ 96
Answer:
Random sample
Step-by-step explanation:
It's a random sample because she did not pick the students 1 by 1, she just chose random students from a list
