Answer: 19.5
Step-by-step explanation:
Use Pythagorean theorem to find the diagonal as it is a right triangle.
Answer:
coefficient of variation = 7.108%
Step-by-step explanation:
From the given information:
The objective is to determine the coefficient of variation for the prices of tickets purchased 30 days in advance is ____%
The mean
= ![\dfrac{250+286+305+256+288+282+254}{7}](https://tex.z-dn.net/?f=%5Cdfrac%7B250%2B286%2B305%2B256%2B288%2B282%2B254%7D%7B7%7D)
The mean
= ![\dfrac{1921}{7}](https://tex.z-dn.net/?f=%5Cdfrac%7B1921%7D%7B7%7D)
The mean
= 274.4285714
The standard deviation also can be computed as follows:
![\sigma =\sqrt{ \dfrac{\sum (x_i-\mu)^2}{N}}](https://tex.z-dn.net/?f=%5Csigma%20%3D%5Csqrt%7B%20%5Cdfrac%7B%5Csum%20%28x_i-%5Cmu%29%5E2%7D%7BN%7D%7D)
![\sigma =\sqrt{ \dfrac{ (250-274.43)^2+(286-274.43)^2+(305-274.43)^2+...+(254-274.43)^2}{7}}](https://tex.z-dn.net/?f=%5Csigma%20%3D%5Csqrt%7B%20%5Cdfrac%7B%20%28250-274.43%29%5E2%2B%28286-274.43%29%5E2%2B%28305-274.43%29%5E2%2B...%2B%28254-274.43%29%5E2%7D%7B7%7D%7D)
![\sigma =19.507](https://tex.z-dn.net/?f=%5Csigma%20%3D19.507)
Finally; the coefficient of variation can be calculated with the formula:
coefficient of variation = ![\dfrac{\sigma}{\overline x}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Csigma%7D%7B%5Coverline%20x%7D)
coefficient of variation = ![\dfrac{19.507}{274.43}](https://tex.z-dn.net/?f=%5Cdfrac%7B19.507%7D%7B274.43%7D)
coefficient of variation = 0.07108
coefficient of variation = 7.108%
Yes it’s correct, it’s C.
Answer:
Jug B can hold 2340 ml.
Step-by-step explanation:
Given
The amount in Jug A = 1800ml
To determine
How much does jug B hold?
Give that the Jug B holds 3/10 more, i.e.
![\frac{3}{10}\times \:1800=540](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B10%7D%5Ctimes%20%5C%3A1800%3D540)
Thus,
The total amount in Jug B = 540+1800
= 2340 ml
Therefore, Jug B can hold 2340 ml.