Urn 1 contains 5 white and 6 black balls, while urn 2 contains 8 white and 10 black balls. Two balls arerandomly selected from urn 1 and are placed into urn 2. If 3 balls are randomly selected from urn 2,compute the expected number of white balls selected from urn 2.Hint : LetAibe the event that theith white ball is selected from urn 1 and placed into urn 2 andthen selected from urn 2. LetBjbe the event that thejth white ball from urn 2 is selected. Define theindicator variables

answer: i think it is (1,-2)

-81 -56 -27 0 81

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.

the above table 1 will calculate the population size (n) after a certain length of time (t). all you need to do is plug in the initial population number (no), the growth rate (r) and the length of time (t). the constant (e) is already entered into the equation. it stands for the base of the natural logarithms (approximately 2.71828). growth rate (r) and time (t) must be expressed in the same unit of time, such as years, days, hours or minutes. for humans, population growth rate is based on one year. if a population of people grew from 1000 to 1040 in one year, then the percent increase or annual growth rate is 40/1000 x 100 = 4 percent.

step-by-step explanation: