Answer:
The correct Answer is 0.0571
Explanation:
53% of U.S. households have a PCs.
So, P(Having personal computer) = p = 0.53
Sample size(n) = 250
np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10
So, we can just estimate binomial distribution to normal distribution
Mean of proportion(p) = 0.53
Standard error of proportion(SE) = 
= 
= 0.0316
For x = 120, sample proportion(p) = 
= 
= 0.48
So, likelihood that fewer than 120 have a PC
= P(x < 120)
= P( p^ < 0.48 )
= P(z < 
) (z=
)
= P(z < -1.58)
= 0.0571 ( From normal table )
Answer:
Answer is A: place absorbent chemical packets in the camera cover
Explanation:
Keith is required to carry adequate gear while going for a shoot. And in this case, he should carry anything that will protect his camera from the ocean and rainwater. By anything, I mean anything that Keith will use to stay dry. Using an air conditioner would be the worst idea. An air conditioner might blow the air towards your camera. Placing the camera in its case will ensure that it is dry and Keith will keep on shooting. Placing absorbent chemical packets in the camera cover will ensure that any water droplets that might fall on the cover of the camera will be absorbed. The point here is to keep dry.
Answer:
The answer: select the element you wish to animate.
Explanation:
The answer is A:the body’s ability to be efficient during movement.
