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!
To answer this question, we need o divide.
Since she has 1180 buttons, we can divide that number by the amount of buttons it takes to make a shirt, 6.
1180/6=196
Hope this helps!
Use the lengths of corresponding sides
so answer is 16:40 which simplifies to 2:5.
He will have 7.75 left from the 20 dollar bill he spent
Answer:
The ratio of jumping jacks to minutes is 120:2 or 60:1. He can do 60 Jumping jacks in 1 minute
Step-by-step explanation:
