In a family of five children, there is a 25% chance that each individual child has freckles. Children inherit freckles independently of one another. Let X represent the number of children in this family with freckles. What are the mean and standard deviation of X? Mu Subscript x Baseline = 1.25, Sigma Subscript x Baseline = 0.97
Mu Subscript x Baseline = 1.25, Sigma Subscript x Baseline = 0.94
Mu Subscript x Baseline = 1.5, Sigma Subscript x Baseline = 0.19
Mu Subscript x Baseline = 2.5, Sigma Subscript x Baseline = 0.97

i don't know answer it yourself :)!

Step-by-step explanation:

i those same problems in math and dont know how to do them

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.