Answer: The mean of the samples is 32.325.
Proportion of the defective unit is =
Explanation:
The point estimate of the mean of the sample:
First calculate the mean of the 40 samples:
The mean of the samples is 32.325.
Defected pieces in the samples whose life span is less than the 26 days = 2
Proportion of the defective unit is =
That depends on how much of it you have, but it's a hugely enormous gigantic number in even the smallest sample.
You can see from the formula that there are 12 atoms in every molecule of the stuff !
Let's see
According to law of conservation of linear momentum
- PE=KE
- KE=mgh
- KE=0.5(9.8)(0.07)
- KE=4.9(0.07)
- KE=0.343J
- KE=343mJ
Answer:
height is 4 times
Explanation:
speed of ball hit by Luis is u
speed of ball hit by Ron is 2u
Let the maximum height traveled by the ball hit by Luis is h and by the ball hit by Ron is h'
At maximum height, the final velocity of ball is zero in both the cases.
Use third equation of motion, we get
For Luis :
.... (1)
For Ron :
.... (2)
Divide equation (2) by equation (1), we get
h' = 4 h
Thus, the statement of third student is wrong.