Answer:
1/3 is your answer
Step-by-step explanation:
hcjiiii suck
Answer:
0.92
Step-by-step explanation:
1
0.23
x. 4
———
0.92
Hope it helps
Answer:
5.37% probability that a bulb picked at random from this company product will have a life time of at least 300 hours
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
![\mu = 210, \sigma = 56](https://tex.z-dn.net/?f=%5Cmu%20%3D%20210%2C%20%5Csigma%20%3D%2056)
What is the probability that a bulb picked at random from this company product will have a life time of at least 300 hours?
This is 1 subtracted by the pvalue of Z when X = 300. So
![Z = 1.61](https://tex.z-dn.net/?f=Z%20%3D%201.61)
has a pvalue of 0.9463
1 - 0.9463 = 0.0537
5.37% probability that a bulb picked at random from this company product will have a life time of at least 300 hours
Answer:
$181
Step-by-step explanation:
Multiply 30.75 by 12 because there are 12 months in one year.
30.75 x 12 = 369
Then subtrcact 369 from 550 to get the net change.
550 - 369 = 181
Michael is left with an account balance of $181.
(g/f)(x)= g(x)/f(x) =
= (x² - 6) /(3x +1)
3x+1≠0
3x≠-1
x≠ - 1/3
(g/f)(x)= (x² - 6) /(3x +1), when x≠ - 1/3
Answer: A.