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RUDIKE [14]
2 years ago
14

All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundation

s in 32 hours. How many hours would this job take if the number of workers
decreased 2 times

increased 2 times

increased 4 times

plz help plz WILL GIVE ALL POINTS

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0

Answer:


Step-by-step explanation:

Please find attachment for step by step explanation.

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Suppose the profit a honda dealership makes on the next 5 accords it sells are:564, 1,000, 848, 1,495, 1,348. calculate the stan
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First we have to find the mean (average)
mean = (564 + 1000 + 848 + 1495 + 1348) / 5 = 5255 / 5 = 1051

now we subtract the mean from every data point, then square it
564 - 1051 = -487......-487^2 = 237169
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848 - 1051 = -203......-203^2 = 41209
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now find the mean of the results.....but know when ur dealing with a sample instead of the whole population, u divide by 1 number less...so instead of dividing by 5, u divide by 4.
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now take the square root of the variance and u have ur standard deviation
sqrt (141581) = 376.272 rounds to 376.27 <==
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