1. what is the marginal distribution of individuals who are underweight?
weight class vs. gender
underweight
at goal weight
overweight
total
male
206
380
1
female
446
on
620
total
1000
62.0%
38.0%
13.0%
65.2%

13%

Step-by-step explanation:

From the given table, the number of outcomes for individuals are underweight = 130

The total number of outcomes = 1000

Then, the marginal distribution of individuals who are underweight will be :-

Hence, the marginal distribution of individuals who are underweight will be = 13%

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

3 qrs + 3/2 xy hope this : /

step-by-step explanation: