Answer:
12
Step-by-step explanation:
12×4=48
48 rounded to the nearest 10 is 50
So we are given that the mean is 42% and the sd (standard deviation) is 8%
Assuming our data is normal we can use the 68-95-99 rule
So one thing you should realize is that 42% + 8% is 50% which is passing. That is one standard deviation higher. So we use:
100 - 68 - 13.5 - 2.35 - 0.15 = 16. That means 16% of students passed the test. Which is terrible. They probably need to hit the books more.
Anyways if you have any question feel free to message me!
Hopes this helps!
Answer:
December 1st
Step-by-step explanation:
Apex
Answer:
1. -17 2. -20 3. -5 4. -1
4
Step-by-step explanation:
