<span>We see the numbers on a number line
_____|___|___|___|___|___|___|___|___|___|___|___|___|____>
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
<______________________________|_________>
9 3
</span><span>You need to add both distances
</span><span>
|-9| + 3 = 9 + 3 = 12
</span><span>half
</span><span>12 : 2 = 6
</span><span>Now , we measure the distance towards the center section
</span><span>1 way
-9 + 6 = -3
2 way
3 - 6 = -3
Answere : -3
</span>_____|___|___|___|___|___|___|___|___|___|___|___|___|____>
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
<___________________|____________________>
<span> 6 6
</span><span>we used the average math
</span>| - 9 | <span>means that the assumed value of -9 9 (positive )</span>
<span>
</span>
Answer:
The probability of of a randomly chosen student being exactly 21 years old.
= 1.293
Step-by-step explanation:
<u><em>Step(i):-</em></u>
<em>Given Population size n = 500</em>
<em>Mean of the Population = 20 years and 6 months</em>
<em> = </em>
<em></em>
<em>Standard deviation of the Population = 2 years</em>
Let 'X' be the range of ages of the students on campus follows a normal distribution
Let x =21
<em>The probability of a randomly chosen student being exactly 21 years old.</em>
<em>P( Z≤21) = 0.5 + A( 0.2) </em>
= 0.5 +0.793
= 1.293
(-1.5,3) Y=3 which is up 3 and a horizontal line and 2x+y=0 can be written as y=-2x so in order to get -1.5 you have to make y=3 cause y=3 and when you do that it should look like 3/-2=-2/-2x so x=-1.5
No it is an irrational number because it is a decimal with repeating numbers.
Answer:
the answer to your question is b
