The brain volumes ? ( cm cubed cm3? ) of 20 brains have a mean of 1083.9 1083.9 cm cubed cm3 and a standard deviation of 122.2 122.2 cm cubed cm3. use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. for such? data, would a brain volume of 1348.3 1348.3 cm cubed cm3 be significantly? high?

answer: the correct answer is -32

step-by-step explanation:

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.

your answer is b.

x = 33.9

y = 65.6

step-by-step explanation: