3 years ago

How is the process of finding equivalent ratios like the process of finding equivalent fractions

1 answer:

3 0

Ratios are fractions. Equivalent means equal, if you change one set of numbers, you have to change the second set of numbers so then that Ratio or Equivalent fraction stays equal on both sides.

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Suppose that past history shows that 60% of college students prefer brand c cola. a sample of 5 students is to be selected. base

creativ13 [48]

The probability is 0.337.

The probability that more than 3 prefer brand c is the same as finding the probability that 4 or 5 prefer brand c. Using a binomial distribution,

$_5C_4(0.6)^4(0.4)^{5-4}+_5C_5(0.6)^5(0.4)^{5-5}
\\
\\=\frac{5!}{4!1!}(0.6)^4(0.4)^1+\frac{5!}{5!0!}(0.6)^5(0.4)^0
\\
\\=5(0.6)^4(0.4)+1(0.6)^5(1)=0.33696\approx0.337$

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3 years ago

The quotient of -4 and y

nadya68 [22]

Answer:

T depends on what y equals. -1/4y, i guess

Step-by-step explanation:

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3 years ago

Does anyone know this? its for a test , please ?!

konstantin123 [22]

Answer:

11) Irrational number

12) Integer

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15) 26

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17) -41

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Step-by-step explanation:

Hope I helped

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3 years ago