What is the exponent of 1x1x1
2 answers:
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Answer:
Step-by-step explanation:
The points on the straight line are (P, 0) and (0, R).
The slope would be
And , because the y-intercept is at (0, R).
So, the equation of this line would be
Where we multiply the equation by
Therefore, the equation that represents this line is
Answer:
Step-by-step explanation:
given that certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours.
Sample size n =16
Std error of sample mean =
x bar follows N(800, 15)
the probability that a random sample of 16 tubes taken from the group will have a mean lifetime
(a) between 790 and 810 hours,
=
(b) less than 785 hours
, (c) more than 820 hours,
(d) between 770 and 830 hours
=