Answer:
8
Step-by-step explanation:
If you go along the x-axis to 9 and go up till it meets the blue line and go left you will reach the integer 8 so f(9)=8
"The graph shows the distribution of time (in hours) that teenagers spend playing video games per week. ", The statement that best describes the distribution is "The distribution is approximately Normal, with a mean of 14 hours and a standard deviation of 4" Option B.
This is further explained below.
<h3>What is Normal
distribution?</h3>
Generally, Data closer to the mean tends to occur more often than data further from the mean, as shown by the normal distribution, also known as the Gaussian distribution. The normal distribution may be represented graphically as a "bell curve."
In conclusion, "the graph illustrates the distribution of the amount of time, in hours, that teens spend playing video games over the course of a week," The statement "The distribution is nearly normal, with a mean of 14 hours and a standard deviation of 4" is the one that gives the most accurate account of how the data was distributed.
Read more about Normal distribution
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Answer:
the answer is 4-x^2
Step-by-step explanation:
-2x
and 2x cancel out
5) 870 is 10 more than 860
6) 782 is 100 less than 882
7) 129 is 100 more than 29
8) 333 is 100 less than 433