23/14=1.6 square feet per hour
Answer:
The mean until the supplement is published is 140 months, while the standard deviation is of 11.8 months.
Step-by-step explanation:
The Poisson distribution is used to solve this question, as we have only the mean. In this distribution, the standard deviation is the square root of the mean.
In this question, we have that:
Species are discovered at a rate of once every 7 months.
A supplement to a guide is planned to be published after 20 new species have been discovered.
a) What are the expected value and standard deviation of the number of months (treated as a continuous measure of time) until the supplement is published?
Mean is: 7*20 = 140 months.
Standard deviation is
= 11.8 months.
The mean until the supplement is published is 140 months, while the standard deviation is of 11.8 months.
This is how the graph will look once you plugged on the variable
Hey!
Hope this helps...
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To find this answer is this way:
Assuming that one rational number is positive, and one number is negative. The only way you can tell if it will positive, negative, or zero is by answering the question it self...
So (for example):
-2.2222 + 2.2222 = 0 <--- zero is if both numbers are the same (except for its symbols)
-3.251 + 0.258 < 0 <--- negative is if the positive is less then the negative number...
-0.2858 + 3.254 > 0 <--- positive is if the negative is less than the positive number...
X= 0, i believe im solving for x