Ask question

Ask question

All categories

4 years ago

13

There are 3 large marbles, 2 medium marbles and 5 small marbles in a bag. If one of the marbles is chosen randomly, what is the

probability that a small marble is chosen?

1 answer:

exis [7]4 years ago

4 0

There is a 50% chance that a small marble is chosen

You might be interested in

Write the equation of a line that goes through point (0,8) and has a slope of 0

puteri [66]

I think the answer is B it would be a vertical line with the rise/run for finding slope

4 0

3 years ago

Read 2 more answers

Suppose a simple random sample of size n is drawn from a large population with mean mu and standard deviation sigma. The samplin

Sidana [21]

Answer:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

6 0

3 years ago

Read 2 more answers

Express 10 3/2 in simplest radical form

Alborosie

Answer:

23/2

Step-by-step explanation:

first turn the mixed number into a fraction:

2*10=20

20+3=23

so, we get 23/2

7 0

3 years ago

Cortney had 5 pieces of candy Cortney ate 1 piece how many pieces does Cortney have left?

Viktor [21]

4. 5-1=4. Hope this helps :)

7 0

3 years ago

Help me with questions 5 6 and 7! I will mark brainliest.

Leviafan [203]

Answer:

5) a=79º b=101º

Step-by-step explanation:

I am not entirely sure but I hope it helps! I'm sorry I only know number 5.

7 0

4 years ago