if the mean is 70 minutes, then 90 minutes is 2 standard deviations above 70. if you look at the bell curve i drew, the percent of exams that took over 90 minutes is 2.5%
<span>
</span>
Answer:
69 is your answer
Step-by-step explanation:
Have a wonderful day and good luck on you're test!
Answer:
Quadratic
If my answer is right give me a like
Answer:
-4x-y=24= - 4 · (-7) - 4 = 24
