Cho hệ các vector U=(1;2;n)(0;-1;1-n)(2;3;n+1)(1;0;2-n) a. Tìm số chiều và cơ sở w của không gian con sinh bởi hệ vector U
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Answer:
1 cup of water will fill = of the plastic container.
Step-by-step explanation:
Given :
of a cup of water fills
of a plastic container.
To find number of containers that can be filled with 1 cup of water, we will use unitary method.
if of a cup of water fills
of a plastic container.
Then 1 cup of water will fill = of a container.
Dividing fractions.
Replacing division with multiplication by taking reciprocal of the divisor.
Multiplying the numerators and denominators.
∴ 1 cup of water will fill = of the plastic container.
The confidence interval would be (10.44, 12.16). This means that if we take repeated samples, the true mean lies in 90% of these intervals.
To find the confidence interval, we use:
We first find the z-value associated with this. To do this:
Convert 90% to a decimal: 90% = 90/100 = 0.9
Subtract from 1: 1-0.9 = 0.1
Divide by 2: 0.1/2 = 0.05
Subtract from 1: 1-0.05 = 0.95
Using a z-table (http://www.z-table.com) we see that this is directly between two z-scores, 1.64 and 1.65; we will use 1.645:
To find the confidence interval, we use:
We first find the z-value associated with this. To do this:
Convert 90% to a decimal: 90% = 90/100 = 0.9
Subtract from 1: 1-0.9 = 0.1
Divide by 2: 0.1/2 = 0.05
Subtract from 1: 1-0.05 = 0.95
Using a z-table (http://www.z-table.com) we see that this is directly between two z-scores, 1.64 and 1.65; we will use 1.645: