Suppose a team of biologists has been studying the pinedale children's fishing pond. let x represent the length of a single trout taken at random from the pond. this group of biologists has determined that the length has a normal distribution with mean of 10.2 inches and standard deviation of 1.4 inches. a. what is the probability that a single trout taken at random from the pond is between 8.5 and 12 inches long ? b. what are the mean and standard deviation of the mean length of a trout in the pinedale children's fishing pond for a simple random sample of 40 trouts. c. what is the probability that the mean length x of 40 trouts taken at random is between 8.5 and 12 inches? d. would your method of answering (a) or (c) be affected if the distribution of the trouts length in the pinedale children's pond were distinctly nonnormal (for example, if they were skewed? ) explain which parts could be answered the same way, which could not, and how you know.

50.6

step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )