The exam scores are distributed normally with mean 72 and standard deviation 5.
Recall the empirical (68 - 95 - 99.7) rule, which says that approximately 95% of a normal distribution lies within two standard deviations of the mean. Put another way,
Also recall that the normal distribution is symmetric about its mean. This means that
From this last equation, it follows that
That is, about 47.5% of the students scored between 72 and 87 on the exam.
Answer:
6*7=42
8*6=48
6*3=18
6*12=72
6*5=30
6*9=54
10*6=60
6*6=36
6*2=12
6*11=66
4*6=24
1*6=6
6*6=36
6*7=42
6*2=12
8*6=48
Step-by-step explanation:
A converse is when we switch the hypothesis and conclusion, so "if a figure is a square then it has four right angles" the converse would be "If a figure has four right angles then it is a square" Which is false because of rectangles, your answer is D.
Answer:
y ≥-3x+4
Step-by-step explanation: