Answer:
Answer B
Step-by-step explanation:
Hope this helps. Can you tell me if it's right and can you give me brainliest??
Answer:
D. 35 + 145 = x
The sum of the angles = 180 degree
Step-by-step explanation:
Answer:
And we can find this probability with the normal standard table or excel and we got:
And for this case is not neccesary applt the finite population correction factor since the distribution for the random variable is assumed known and normal
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 length of time 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 with the normal standard table or excel and we got:
And for this case is not neccesary applt the finite population correction factor since the distribution for the random variable is assumed known and normal
Answer:
Step-by-step explanation:
Answer: 3^2 = 1/9
3^0 = 1
3^1 = 3
3^3 = 27