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4 years ago

15

Ron tosses a 6-sided number cube labeled 1 to 6. Describe the probability that he tosses a number greater than 1. Explain your r

easoning.

2 answers:

Brrunno [24]4 years ago

4 0

5:6. cuz there are 5 numbers greater than 1 that can be rolled

kari74 [83]4 years ago

4 0

5:6 there's five numbers on the cube that are greater than one.

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80. A game popular in Nevada gambling casinos is Keno, which is played as follows: 1\venty numbers are selected at random by the

Dafna1 [17]

Note: Complete Question part

(a) What would be the fair payoff in this case?

Let Pn ,k denote the probability that exactly k of the n numbers chosen by the player are among the 20 selected by the house.

Answer:

the fair payoff is $16.63

Step-by-step explanation:

Find the attachments for complete step by step explanation

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3 years ago

A CBS News/New York Times survey found that 97% of Americans believe that texting while driving should be outlawed (CBS News web

Murrr4er [49]

Answer:

a) $P(X\geq 8)=0.0317+0.228+0.737=0.9972$

b) $P(X>95) =1-P(X$

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

The complement rule is a theorem that provides a connection between the probability of an event and the probability of the complement of the event. Lat A the event of interest and A' the complement. The rule is defined by: $P(A)+P(A') =1$

Part a

We want this probability:

$P(X\leq 12)$

$P(X\geq 8)=P(X=8)+P(X=9)+P(X=10)$

$P(X=8)=(10C8)(0.97)^8 (1-0.97)^{10-8}=0.03174$

$P(X=9)=(10C9)(0.97)^9 (1-0.97)^{10-9}=0.2287$

$P(X=10)=(10C10)(0.97)^{10} (1-0.97)^{10-10}=0.7374$

$P(X\geq 8)=0.0317+0.228+0.737=0.9972$

Part b

We need to check if we can use the normal approximation , the conditions are:

$np=100*0.97=97>10$ and $n(1-p)=100*(1-0.97)=3$

On this case the second condition is not satisfied, but the problem says that we can use it. So then if we apply the normal approximation to the binomial distribution in our case:

$X \sim N(\mu=97,\sigma=1.706)$

We can use the z score formula given by:

$z=\frac{x-\mu}{\sigma}$

And we want this probability:

$P(X>95) = P(Z>\frac{95-97}{1.706})= P(Z>-1.17)$

And we can use the complment rule and we got:

$P(X>95) =1-P(X$

6 0

3 years ago

If a company issues 2,500,000 shares with voting rights how many shares must an investor by to be assured control of the company

Aliun [14]

I think for an investor to have control of a company, he/she needs 51% of the voting rights...

51% of 2,500,000 = 0.51(2,500,000) = 1,275,000 <==

4 0

3 years ago

Read 2 more answers

Elaine is painting a fence. She knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a r

Tcecarenko [31]

There are 2 walls that are 9 feet each and then 2 walls that are 6 feet each. Adding those up will give you 30 feet of fencing. If you need 1 gallon for every 10 feet and there are 30 feet of fencing, that would mean that you need 3 gallons of paint.

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3 years ago

Choose the correct subject pronoun.

Elan Coil [88]

Answer:

D

Step-by-step explanation:

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3 years ago