standard deviation is the average distance of each point from the mean, so if 30 was added to a data set with a mean of 30, its deviation would be zero, making the average deviations lower. how does oddd/even # affect that at all?
2x+3 would most mimic it, I tried f(100), 1000, 10000
How many lines
Frigidcold dude trust me we’re right on the S.D. question. I’m good at maths, answered loads of similar questions for my Stats exam, I know that it’s correct. I’m confused on the sphere one though, how can two spheres intersect to form a circle? surely they’d intersect to either form a point = tangent, or a 3d shape, a sphere if one is inside the other?
It was a small number jpatel like 12/50
@Kat2016 Ikr?..
@Kylemcgrogan I plugged the function into my graphing calculator and found that it followed the shape/ pattern of a negative porabola? can anyone deny or confirm?
2 distinct lines?
Anyone have a definite answer on the 150 and 3 question? Lol I got 3 replies with 3 different answers
@kylemcgrogan Correct.
for the equation that most resembles the original one as x increases, was it 2x+3? i thought it would be 2x+1 but that wasn’t an option so i chose 2x+3 since that was the closest and i really hope that’s right
Kyle it was the one with the asymptote
@guy6127 I think 3. 2 vertical and 1 horizontal. Someone verify?
@luckykansasmath Nah, did it algebraically, 2x+3. Also graphed it after.
Simple enough,
Equate 150 = k/3squared or whatever, then use k for the other one
I said sphere and point.
can u post the full question
I put none because I graphed it and it was continuous (The middle curve passed through the origin).
No, its 2. the horizontal one is crossed by the middle thingy. y=0 is crossed at the point (0,0).