100 is 10 times 10,
10*10=100 Answer
Answer:
B.
Step-by-step explanation:
Brainliest???
Answer:
The critical value that should be used is T = 2.492.
The 98% confidence interval for the population mean bromide concentration is between 0.486 cc/m³ and 0.518 cc/m³
Step-by-step explanation:
We have the standard deviation for the mean, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 25 - 1 = 24
98% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of . So we have T = 2.492, which is the critical value that should be used.
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 0.502 - 0.016 = 0.486 cc/m³
The upper end of the interval is the sample mean added to M. So it is 0.502 + 0.016 = 0.518 cc/m³
The 98% confidence interval for the population mean bromide concentration is between 0.486 cc/m³ and 0.518 cc/m³
Well. The formula for the area of a trapezoid is b1 + b2 over 2 times h.
a = b1 + b2 (h)
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2
3.9 = 4+2.5 (h)
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<span> 2</span>
3.9 = 6.5(h)
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2
height = 1.2 cm.
The two orange squares means one whole. Two orange squares means two.
The empty one means it 0
and the last one is divided by 10 lines. Since it's a square, it means it would be 10 down and 10 across.
Since two of the lines are orange it means 2/10.
And since we know that the square it 10x10. One square would be 1/100 because 10x10 = 100
Im not sure about the black squares, but I bet it's either decimal or not a full square.
If not a full square then that means that the box has 7 and .4 lines. Because on the last bit, there are 4 squares left.
If a decimal, then,
it would be 26 of black squares, which would lead you to: 202.1. I think :3