7 goes into 11 one time, which leaves you with 1 4/7.
Answer:
And we can find this probability using the normal standard table or 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 golf scores 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 normal standard table or excel and we got:
We can use the following excel code to find it: "=NORM.DIST(-1,0,1,TRUE)"
Answer:
77 degrees
Step-by-step explanation:
180 - 103 = 77
Hope that helps!
Answer:
x = ±3
Step-by-step explanation:
(3x² + 27)(x² - 9) = 0
(3x² + 27)(x + 3)(x - 3) = 0
3x² = -27
x² = -9
x = √-9 (this will result in an imaginary number)
x + 3 = 0
x = -3
x - 3 = 0
x = 3