Assume that newborn girls have birth weights with a mean of 3055 grams and a standard deviation of 692 grams. A random sample of 100 newborn girls is obtained and they have a mean birth weight of 2869 grams. What is the probability of randomly selecting another 100 newborn girls and getting a mean birth weight that is 2869 grams or lower? Does it seem like a sample mean of 2869 grams is unusual?

13.46

step-by-step explanation:

16.80 x .20 = 13.46

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96

1. she sold more on day 2 because if you turn .85 into a fraction{85/100} and you give 7/9 and 85/100 the same denominator{180} you can see which one has the bigger numerator and that one will be the most sold.

2. yes it is in simplest form, because if you look at 38 and 53 's greatest common factor, you cant find one so you cant reduce it

3. no, this is not a prime factorization because the numbers are not all prime numbers, the correct prime factorization is:   2 x 5 x 2

4.   in 12 days he will run and play trumpet again

work 4 4: 123123123123

                123412341234     in 12 days he will play the trumpet and run on the same day

step-by-step explanation:

i am normally pretty good at math, im new to this site, but im 1 grade ahead in my math, i luv math try my answers out, see how they work