A population has mean 128 and standard deviation 22
A. Find the mean and standard deviation of
for samples of size 36.
B. Find the probability that the mean of a
sample of size 36 will be within 10 units of
the population mean, that is, between 118
and 138. Chint, since the samples are over
30, CLT states that it is normal and we can
use normalcdf)
a. mean = 128. sd-36
b. .0005
a. mean = 128, sd - 3.67
b..821
a. mean = 128, sd - 3.67
b..9936
a. mean 128, sd 38
b. .9999

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?