SOLUTION: one in four americans own stock, in a random sample of ten people, what is the probability that the number owning individual stocks is?
Exactly 2=0.0282 (???)
At most two?
More
Algebra.Com
Question 514255: one in four americans own stock, in a random sample of ten people, what is the probability that the number owning individual stocks is?
Exactly 2=0.0282 (???)
At most two?
More than two?=0.718 (???)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
one in four americans own stock, in a random sample of ten people, what is the probability that the number owning individual stocks is?
-----
Binomial Problem with n = 10 and p = 0.25
----
I used a TI-84 calculator to get the following answers.
--------------------------
Exactly 2 = 0.2816
At most 2 = binomcdf(10,0.25,2) = 0.5256
More than 2 = 1 - 0.5256 = 0.4744
======================================
Cheers,
Stan H.
RELATED QUESTIONS
in a survey , 65% of Americans said they own an answering machine. If 20 Americans are... (answered by stanbon)
15% of the people in the US own a cat,20%own a dog, and 5% own both. Given that you own a (answered by Edwin McCravy)
15% of the people in the US own a cat,20%own a dog, and 5% own both.
What is the... (answered by Edwin McCravy)
in a group of 21 people, seven own an ITouch phone. If 9 people are selected at random... (answered by stanbon)
In a region of the world, 18% of people still own a VCR, 54% own a DVD player, and 62.28% (answered by stanbon)
22.) One out of four Americans over age 55 has eaten pizza for breakfast. If a sample of... (answered by stanbon)
According to a national poll, 46% of Americans 16 years old or older stated that they had (answered by Boreal)
A recent Gallup poll shows that approximately 50% of Americans drink soda every day.... (answered by greenestamps)
According to a study conducted by a statistical organization, the proportion of Americans (answered by stanbon)