Answer:
And we can find this probability using the complement rule and the normal standard table or excel:
The firgure attached illustrate the problem
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 retirement savings of a population, and for this case we know the distribution for X is given by:
Where
and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the complement rule and the normal standard table or excel:
The firgure attached illustrate the problem
827 divided by 26 is 827/6. This is equivalent to 31 21/26 as a mixed number.
Answer:
x=93°
Step-by-step explanation:
Angles in a triangle equals 180°
Represent the unknown angle in the triangle with y.
35°+58°+y=180°
93°+y=180°
y=180°-93°
y=87°
Angles on a straight line equals 180°
x=180°-87°
x=93°
As always, willing to help...
A) After college graduation, Emma will have $7,312.16.
b) Emma's account earned $3312.16.