What is the equation of the quadratic graph with a focus of (4, −3) and a directrix of y = −6? (1 point) Select one: a. f(x) = n
1 answer:
You might be interested in
Step-by-step explanation :
Sam : 0.25 = =
(Answer)
Mark : 0.30 = =
(Answer)
Jill : 0.35 = =
(Answer)
Total amount of pizza eaten = 0.25 + 0.30 + 0.35 = 0.9
Amount of pizza left = 1.0 - 0.9 = 0.1 = =
(Answer)
Answer:
And we can find this probability using the normal standard table or excel:
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 amount of ml 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: