Answer:
t=−0.543624 lemme know if i was right
Step-by-step explanation:
Answer:
V-9%= Vehicles Left V- 0.09= Vehicles Left
Step-by-step explanation:
Answer:
1.46
Step-by-step explanation:
First find the the mean score before he made a 90.

Now add the score of 90 and calculate.

Subtract the two scores.

His mean test score increased by 1.46.