Answer:
And we can find the following probability:
And the last probability can be founded using the normal standard distribution or excel.
Step-by-step explanation:
For this case we define the random variable X as the ages of vehicles. We know the following info for this variable:
represent the mean
represent the deviation in years
They select a sample size of n=40>30. And they want to find this probability:
Since the sample size is large enough we can use the central limit theorem and the distribution for the sample mean would be:
We can use the z score formula given by:
And if we find the z score for 4 we got:
And we can find the following probability:
And the last probability can be founded using the normal standard distribution or excel.
Answer:
Ima say the answer is 9, likely she bought 6 more new and with the fire half were destroyed of this 6 new posters only are 3 left so she has 12 posters left that means only 3 are added to how much posters she had before, so in some words she started with 9 also 9+3=12.
For where it says write and equation I think the answer would be something like 9+6-3. In where it says work I want to assume is your explaination so you can use the first paragraph I made. Check Its prob a re do of the work you have done to make sure its right. Coming with "Define the value" Im not sure of this but i think is to define your equation.
Answer:
see below
Step-by-step explanation:
and the other
Answer:
The answer is "0.03125".
Step-by-step explanation:
Two types of undergraduates exist. Its chance for selecting the very first person who is part of degree studies will be 1/2. The probability will also be 1/2 for the 2nd person, as well as, the 3rd, 4th, and 5th person. For 5 random samples, the probability of the graduate therefore is
Answer:
-10w - 20
Step-by-step explanation:
You distribute the 5 to each term inside the parentheses. 5 * -2w = -10w, and 5 * -4 = -20. Then you add them to get -10w - 20.
