Answer:
a)Both X and Y can be well approximated by normal random variables.
Step-by-step explanation:
For each individual, there are only two possible outcomes. Either they are right-handed, or they are left-handed. This means that we can solve this problem using concepts of the binomial probability distribution.
Binomial probability:
Probability of exactly x sucesses on n repeated trials, with probability p.
The binomial probability can be well approximated by normal random variables, using the expected value 
and the standard deviation 
Let X be the number of males (out of the 100) who are left-handed.
and 
. Can be well approximated.
Let Y be the number of females (out of the 80) who are left-handed.
and 
. Can be well approximated.
The correct answer is
a)Both X and Y can be well approximated by normal random variables.
T(4,-1) means move 4 units to the right and 1 unit down.
Based on the image, M(-3,4) ; N(-2,1) ; P(-4,2)
So,
M:
-3 move 4 units to the right becomes 1
4 move 1 unit down becomes 3
M'(1,3)
N
-2 move 4 units to the right becomes 2
1 move 1 unit down becomes 0
N"(2,0)
P
-4 move 4 units to the right becomes 0
2 move 1 unit down becomes 1
P''(0,1)
Answer: v=Lwh (volume = length x width x height)
Step-by-step explanation: it would be the first answer, to find volume, it’s finding the amount of space in a 3D object, kind of like area, but multiply the height to the area (bxh)
Answer:
Andrea is making a sandbox.She has made a wooden frame in her backyard that is 6 feet long, 6 feet wide, and 2 feet deep. She can purchase sand for $30 per cubic meter. How much will it cost for her to purchase sand? Hint: 1 foot equals 0.3048 meters.
Step-by-step explanation:
Step-by-step explanation:
label the numbers (x,y) and (x2,y2)
write down the distance formula
replace the xs and ys by the numbers and then solve them
