Answer:
0.8% of the people had a mild allergic reaction.
1. The mean is calculated using:
(9.4 + 17 + 7.3 + 7 + 16.1 + 5.4 + 5.9 + 8.5 + 4.2 + 9.2)/ 10
= 9
2. The standard deviation is 4.31
3. The years are 1996, 1997, 1999-200
<span>c) 1996 and 1997
</span>
4. The median is 7.9
Okay, there is a right angle so that equals 90. A given angle inside the triangle is 35. To find the missing angel within the triangle you do 90+35 which will give you 125. You will then subtract 125 from 180 ( because all triangles add up to 180 ) so the angle missing at the top would be 55. Now, you’re going to want to use Sine, Cosine, and Tangent. I would use the angel 35 that they provided you. So the way you set it up will be -
Tan (35) = x / 12
Then you’re going to want to cross multiply so you will now have
X = tan(35) • 12
^ plug this equation into a calculator and you will get your answer. I hope this helped!