Answer:
Since
, you have the following arrangements.
Optional:
(and it's mirror version
, if you want to consider a long strip of bottles a rectangle. Technically it is, but it's open to interpretation.
and it's mirror
;
and it's mirror
;
Optional:
. Since a square is a rectangle with extra limitations.
<span> (a) if 1 woman is randomly selected, find the probability that her height is less than 64 in
using z-score formula:
z-score=(x-mu)/sig
(64-63.5)/2.8
=0.18
thus
P(x<64)=P(z<0.18)-=0.5714
B] </span><span> if 33 women are randomly selected, find the probability that they have a mean height less than 64 in
using the central limit theorem of sample means, we shall have:
2.8/</span>√33=0.49
since n>30 we use z-distribtuion
z(64)=(64-63.5)/0.49=1.191
The
P(x_bar<64)=P(x<1.191)=0.8830
Answer: 7
Step-by-step explanation:
280/2 is equal to 140 :)))
i hope this is helpful
have a nice day
P(x=blue) = 4/18, or 2/9
P(2 blues) = (2/9)² = 4/81