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2 years ago

10

el lanzamiento de un dado 5 veces considerando los sucesos a=2,3,2,4,6. halla la probabilidad que el saga el 2. halla la probali

dad de que salga Ñ ha el 5.

1 answer:

antoniya [11.8K]2 years ago

7 0

Answer:

do you mind translating it

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What is the rate of $120 for 15 books written as a unit rate? thank u

Vikki [24]

Answer:

1 book for 8 1/8

Step-by-step explanation:

120/15 simplify by dividing by 8 and get 1/8

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3 years ago

Solve the following system using substitution<br> x − 5 y = 32<br> 2 x − 9 y = 57

Ratling [72]

Answer:

x= - 3 and y= - 7

Step-by-step explanation:

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3 years ago

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The length of a river is 480km. What is its length on a map with a scale 1 : 5,000,000?

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2 years ago

For i≥1 , let Xi∼G1/2 be distributed Geometrically with parameter 1/2 . Define Yn=1n−−√∑i=1n(Xi−2) Approximate P(−1≤Yn≤2) with l

murzikaleks [220]

Answer:

The answer is "0.68".

Step-by-step explanation:

Given value:

$X_i \sim \frac{G_1}{2}$

$E(X_i)=2 \\$

$Var (X_i)= \frac{1- \frac{1}{2}}{(\frac{1}{2})^2}\\$

$= \frac{ \frac{2-1}{2}}{\frac{1}{4}}\\\\= \frac{ \frac{1}{2}}{\frac{1}{4}}\\\\= \frac{1}{2} \times \frac{4}{1}\\\\= \frac{4}{2}\\\\=2$

Now we calculate the $\bar X \sim N(2, \sqrt{\frac{2}{n}})\\$

$\to \frac{\bar X - 2}{\sqrt{\frac{2}{n}}} \sim N(0, 1)\\$

$\to \sum^n_{i=1} \frac{X_i - 2}{n} \times\sqrt{\frac{n}{2}}} \sim N(0, 1)\\\\\to \sum^n_{i=1} \frac{X_i - 2}{\sqrt{2n}} \sim N(0, 1)\\$

$\to Z_n = \frac{1}{\sqrt{n}} \sum^n_{i=1} (X_i -2) \sim N(0, 2)\\$

$\to P(-1 \leq X_n \leq 2) = P(Z_n \leq Z) -P(Z_n \leq -1) \\\\$

$= 0.92 -0.24\\\\= 0.68$

6 0

2 years ago

to stay healthy we should drink 6 1/2 glasses of water a day. if we follow guidelines how much water would we drink in a full we

nignag [31]

Answer:

Step-by-step explanation:

Saying that each glass is 8 ounces if you drink 6.5 glasses a day your drinking 52 ounces a day. Seven days are in a week 52 ounces times 7 days gives you 364 ounces a week 364 ounces divided by 8 ounces per glass gives you 45.5 glasses in a full week

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2 years ago