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elena-14-01-66 [18.8K]
3 years ago
9

the science department buys the equipment shown in the table they bought all three items this year and how many years do they ha

ve to buy all three items again

Mathematics
1 answer:
mel-nik [20]3 years ago
6 0
Given that t<span>he science department buys the equipment shown in the table below.

Item                      Time Bought
Microscopes          every 5 years
Safety goggles      every 4 years
Test tubes             every 2 years

Given that they bought all three items this year. The number of years it will take for them to buy all three items again in the same year is given by the LCM of 5, 4, and 2.

5 = 1 x 5
4 = 1 x 2 x 2
2 = 1 x 2

LCM = 1 x 2 x 2 x 5 = 20.

Therefore, they will buy all three items again in 20 years.
</span>
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Based on the calculations, the statement which has the strongest association is that females prefer drama movies (0.571).

<h3>How to determine the strongest association?</h3>

In order to determine which statement has the strongest association, we would have to calculate the probability for each statement and then select the statement with the highest value of probability.

For females that prefer drama movies, we have:

P = (No. of females who prefer drama)/(No. of females)

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For males that prefer comedy movies, we have:

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P = 0.36.

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P = (No. of females who prefer comedy)/(No. of females)

P = 36/126

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Based on the calculations, we can logically deduce that the statement with the strongest association is that females prefer drama movies (0.571).

Read more on strongest association here: brainly.com/question/21746903

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