All categories

3 years ago

If nine coins are flipped, what is the probability of obtaining at least one head?

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

6 0

Answer:

the chance of getting at least 1 head is 99.8%.

Step-by-step explanation:

Since the chance to head is a %.5 chance, then thats the variable. There is 9 of those , and then mulitply that then subtract from one.

You might be interested in

What is the measure of the exterior angle?

Nastasia [14]

Answer:

the measure of the exterior angle is 87 degrees.

8 0

3 years ago

If x divided by 9 = 1, how do you know what x is

padilas [110]

X/9=1

Multiply both sides by 9. So x=9.

6 0

4 years ago

Read 2 more answers

A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?

VladimirAG [237]

Answer:

$\sigma = 5.5$

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution $\bar X$ and for this case we know that the distribution is given by:

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

And the standard error would be:

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

And replacing we got:

$\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611$

Step-by-step explanation:

For this case we know the population deviation given by:

$\sigma = 5.5$

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution $\bar X$ and for this case we know that the distribution is given by:

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

And the standard error would be:

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

And replacing we got:

$\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611$

4 0

3 years ago

Put these numbers in order from greatest to least<br> 6/8, 0.12, and -0.25

Setler [38]

This is the answer -0.25,0.12,6/8

4 0

3 years ago

Helppppppp mathhhh failingggg

Svet_ta [14]

Tangent ratio is the opposite side/adjacent side.
In relation to Angle A: The opposite side has a length of 2 and the adjacent side has a length of 3.
Tan A = 2/3

7 0

3 years ago

If nine coins are​ flipped, what is the probability of obtaining at least one head​?

If nine coins are flipped, what is the probability of obtaining at least one head?