Answer:
0.55
Step-by-step explanation:
Standard Error of the mean= Standard deviation/sample size
About 0.55
Please give me brainliest, I really need it.
Answer:
22y^2
Step-by-step explanation:
here is the answer
Answer:
y=8/13, 10/13=x
Step-by-step explanation:
-2y = x-2, so 2y = -x+2. y = -1/2x+1, and we plug this in -4x+3y to get
-4x-1.5x+3=x-2
-5.5x+3=x-2,
-6.5x=-5
13x=10
x=10/13.
for y we plug the x in to get -40/13=-5y
40/13=5y
y=8/13
The chance that a random child sleeps with the light on and becomes myopic is 0.2(0.32)=0.064. The chance that a random child does not sleep with the light on and becomes myopic is (0.8)(0.25)=0.2. Both together give a probability of 0.264.
