The highway fuel economy of a 2016 lexus rx 350 fwd 6 cylinder 3.5-l automatic 5- speed using premium fuel is a normally distributed random variable with a mean of u=26.25 mpg and a standard deviation of o=3.00 mpg what is the standard error of x, the mean from a random sample of 9 fill-ups by one driver?

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Which equation is true? i. 56 ÷ 4·7 = 82 ÷ (11 + 5) ii. (24 ÷ 8 + 2)3 = (42 + 9)2 neither i nor ii ii only i and ii i only