How much trophies does Jared have(
Answer:
This isn't that specific enough
Step-by-step explanation:
The picture in the attached figure
we know that
volume of the regular pyramid=(1/3)*area of the base*height
area of the base=12*12-----> 144 units²
height=71 units
substitute
volume of the regular pyramid=(1/3)*144*71-----> 3408 units³
the answer is3408 units³
The z score for a confidence level of 99% is 2.575.. You need to know this to complete this type of problem.. the other two commonly used confidence levels are 90% and 95% having z scores of 1.645 and 1.96 respectively. You need to memorize this!
To find the confidence interval, it will be defined as the sample mean plus/minus the margin of error.. Now to find the margin of error, divide the standard deviation of 12 by the square root of the number of elements in your sample(√250). Then take that result and multiply it by the Z score I mentioned above for a 99% confidence level.
In this case: the sample mean is 70 and the margin of error is approximately 1.95
So to calculate the confidence interval, do the following:
70 - 1.95 = 68.05 rounded to the nearest whole number is 68
70 + 1.95 = 71.95 rounded to the nearest whole number is 72
Looks like that would be the last choice. hope this helps.. it's been awhile since my work with statistics :-)
Well, to solve this problem, we can simply divide 8 and 1/2 by 2 and 3/4 so, let’s do that.
(8 1/2) / (2 3/4)
= (17/2) / (11/4). ***dividing two fractions together is the same thing as multiplying them but the second fraction is flipped.
(17/2) / (11/4)
= (17/4) * (4/11)
= 68/44
So, in conclusion, the answer to this question is: 68/44.
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