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
![Z = \frac{x-mean}{S.D}](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7Bx-mean%7D%7BS.D%7D)
![Z = \frac{x-mean}{S.D} = \frac{21-20.6}{2} =0.2](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7Bx-mean%7D%7BS.D%7D%20%3D%20%5Cfrac%7B21-20.6%7D%7B2%7D%20%3D0.2)
<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
Answer:
x = -2/3
Step-by-step explanation:
x + 10 ÷ 6 = 1
Divide
x + 1 2/3 = 1
Subtract 1 2/3
x = -2/3
Also, as a girl, we do give some signs to people that we like, we start conversations with the person, we make eye contact and then look away (at least that what I do lol), flirts with you, agrees with you, wants to spend time with you, etc.
Answer: Lighter
Step-by-step explanation: Look at the first two digits of each number, one is 38 and the other is 37, 37 is less.
<h2>
Answer:</h2>
15 minutes
<h2>
Step-by-step explanation:</h2>
For every hour of homework she gets 5 minutes of video games.
She spend 3 hours of homework.
We multiply 3*5
Answer is 15