2(2x^3+4x-1) is the answer.
The metric unit of length is the meter.
My left thumb is about 0.06 meter long.
(It's hard to tell exactly, because I'm not sure where it starts.)
Another smaller unit, called the "centimeter", is often used
for convenience. Each centimeter is 0.01 of a meter.
So 0.06 meter, mentioned above, is the same as 6 centimeters.
You would have to have 3 and 1/3 graphed and the put 2 on the x axis
Answer:
c. 0.0142
Step-by-step explanation:
1) 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".
Let X the random variable that represent interest on this case, and for this case we know the distribution for X is given by:
And let
represent the sample mean, the distribution for the sample mean is given by:
On this case
2) Solution to the problem
We want this probability:
The question on this case is ".Find the probability that the average price for 30 gas stations is less than $4.55". So then our value for n=30.
If we apply the formula for the z score to our probability we got this:
![P(\bar X \leq 4.55)=P(Z\leq \frac{4.55-4.59}{\frac{0.1}{\sqrt{30}}})=P(Z](https://tex.z-dn.net/?f=P%28%5Cbar%20X%20%5Cleq%204.55%29%3DP%28Z%5Cleq%20%5Cfrac%7B4.55-4.59%7D%7B%5Cfrac%7B0.1%7D%7B%5Csqrt%7B30%7D%7D%7D%29%3DP%28Z%3C-2.19%29)
And using the normal standard table or the following excel code we calculate the probability "=NORM.DIST(-2.19,0,1,TRUE)"
Answer:
1. Dots
2.Blank
3. Stripes
4. Stars
Step-by-step explanation:
Well the total is 30 and we just have to see the fraction of each time in landed on a specific part of the spinner. So first the probability of landing on dots is 6/30 = 1/5
Then the experimental probability of getting a blank is 8/30 = 4/15
Continuing in the same manner getting stripes would have a chance of 12/30 which is 2/5
Finally I'm gonna let you think about how I got the last one and why I did what I did :)