Approximately 10% of all people are left-handed. consider a grouping of fifteen people. a.) state the random variable. x = number of people left-handed out of 15 people. b.) write the probability distribution. c.) = p(x=r)=c n/p^r q^n-r n/r= n! /r! n-r! d.) draw a histogram. x: value of random variable y: probability associated with that random variable. e.) describe the shape of the histogram. f.) find the mean. g.) find the variance. h.) find the standard deviation.

the answe i =−n+5

.5 lb

step-by-step explanation:

12 in / 6 in =2 in

.25 x 2 = .5 lb

answer:   c ?

step-by-step explanation:

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.