![subject](/tpl/images/cats/mat.png)
Mathematics, 10.03.2020 00:23 meje1301
In a large population of college-educated adults, the mean IQ is 118 with a standard deviation of 20. You do not know the population distribution for the IQ scores - only the population mean and the population standard deviation. Suppose 200 adults from this population are randomly selected for a market research campaign.
What is the probability that the sample mean IQ is greater than 120?
A) 0.4602 B) 0.0793 C) 0.5398 D) 0.9207
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Can any one me with the answers to these questions asap?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
Which of the functions graphed below has a removable discontinuity?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30
Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?
Answers: 1
You know the right answer?
In a large population of college-educated adults, the mean IQ is 118 with a standard deviation of 20...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 17.01.2021 21:40
![question](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:40
![question](/tpl/images/cats/en.png)
English, 17.01.2021 21:40
![question](/tpl/images/cats/istoriya.png)
History, 17.01.2021 21:40
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.01.2021 21:40
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 17.01.2021 21:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:50
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 17.01.2021 21:50