Answer:
In a normal distribution, 50 percent of the data are above the mean, and 50 percent of the data are below the mean. Similarly, 68 percent of of all data points are within 1 standard deviation of the mean, 95 percent of all data points are within 2 standard deviations of the mean, and 99.7 percent are within 3 standard deviations of the mean.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
Also:
The normal distribution is symmetric, which means that 50% of the data is above the mean and 50% is below.
Then:
In a normal distribution, 50 percent of the data are above the mean, and 50 percent of the data are below the mean. Similarly, 68 percent of of all data points are within 1 standard deviation of the mean, 95 percent of all data points are within 2 standard deviations of the mean, and 99.7 percent are within 3 standard deviations of the mean.
Answer:
By distance formula ,
(approx)
To give answer in 3 significant figures :
AB = 6.70
Answer:
b=15
Step-by-step explanation:
360-90=270
270+60=330
360-330=30/2=15
Answer:
The area of the kite is 
Step-by-step explanation:
we know that
The area of a kite is half the product of the diagonals
so
we have
<em>Find the length side of diagonal D2</em>
Applying the Pythagoras Theorem
<em>Find the area of the kite</em>
we have
substitute
Answer:
Well it would depend on the price
Step-by-step explanation:
if it was for $100 item , these are the same but, if its more, the 20% will be higher off the bigger the price
so I would much rather have 20% off for and item more than 100 dollars and prefer 20$ off to something under a $100
