Answer:
what do you mean dead its not breathing
Step-by-step explanation:
someone help ambulance we want <em>CPR</em>
brainly is dead
haha sorry i was just joking hehe (≧∇≦)
9/8 divided by 3/8 is 3 (because of the same denominator look at the first number)
3/5 divided by 2/3 is 0.9 hope this helps
Answer:
D
Step-by-step explanation:
buohcuihefjejfkjkclhfvujhfjvnkljsfnvnfuhvnkk j bljfvnk nvn fv bvkjnfn vn hbfvkjbdvn vhbvfj hbf fd vdkjkfnvkjdnjvn df jb j bn bfkjbs jsb
<h3>
Answer: 20 </h3>
=====================================================
Reasoning:
The empirical rule says that about 68% of the population is within 1 standard deviation of the mean. This applies to the normal distribution.
The mean in this case is 72 and the standard deviation is 7.
One standard deviation below the mean is 72-7 = 65, while one standard deviation above the center point is 72+7 = 79. This is visually shown as the closest tickmarks to the center 72. Each tickmark represents a unit of standard deviation (eg: 85 is two standard deviations above the mean, since it's 2 tickmarks above 72).
Saying "within 7 points of the mean" therefore is the same as saying "the score is between 65 and 79, inclusive of both endpoints".
So you're teacher is asking how many students got between 65 and 79. As mentioned at the very top, roughly 68% of the population fits this description.
Meaning,
68% of 30 = 0.68*30 = 20.4 = 20 students got a quiz score within seven points of the mean.
454.90, the 5 makes the 9 go up which in turn makes the 8 also go up.
