Answer:
The answer is D (line symmetry and rotational symmetry; 180o; order 2.
Step-by-step explanation:
You can fold the figure in half and it would be the same on both sides. The figure also has rotational symmetry because if you rotate the figure 180 degrees about the center, then it basically maps itself, or in other words, its the same. So the ANSWER IS D
You divide by 2 until you can't divide by 2 anymore.
Hope this helps.
Answer:
And for this case we can use the complement rule and the normal standard distribution of excel and we got:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:
Where and
And we select a sample size of n =70
From the central limit theorem (n>30)we know that the distribution for the sample mean is given by:
And we want to find this probability:
And we can use the z score formula given by:
And using this formula we got:
And for this case we can use the complement rule and the normal standard distribution of excel and we got:
Answer:
Yes it does
Step-by-step explanation:
The average is shifted to higher side if higher number is present in a data set.
suppose the following set of data
20, 40 , 60, 100
avergae of data= (20+40+60+100)/ 4 = 55
now suppose following set of data
20,40,60,1000
average of data= (20+40+60+1000)/4= 280
You know that the angle measurements in a triangle add up to 180 degrees.
using the equation 3x+4x+2x= 180, you can find x
Simplify:
9x=180
x=20
Your answer is B) x = 20
Hope this helps!