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3 years ago

180 red marbles to 145 blue marbles ratio

Mathematics

1 answer:

Ket [755]3 years ago

6 0

Answer:

36 : 29

Step-by-step explanation:

Require to simplify the ratio

180 : 145

Divide both parts by 5

= 36 : 29 ← in simplest form

Simplest form means that no other number but 1 will divide into the 2 parts of the ratio.

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Suppose you flip a fair coin N times. Let random variable h be the number of heads that occur. Use the normal approximation to e

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If n = 10400, then

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Step-by-step explanation:

Since the coin is fair, then the probability that a filp is heads is 1/2. Given N tries, the amount of heads can be approximated with a Normal distribution with mean μ = N *1/2 = N/2 and standard deviation σ = √(N*1/2 * 1/2) = √N/ 2

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$f_X(k) = \frac{1}{\sqrt{2\pi} * \sigma} e^{\frac{-(k-\mu)^2}{2\sigma^2} } = \frac{2}{\sqrt{2\pi N}} e^{\frac{-2(k-N/2)^2}{N} }$

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If N = 102, then

$P(h < 40 or h > 60) = 1-P(40$

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Can someone help me with this question please .

ziro4ka [17]

The to answer is correct

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