![subject](/tpl/images/cats/mat.png)
Mathematics, 14.02.2020 22:46 FaygoMango
In a population, the correlation coefficient between family income and child IQ is 0.30. The mean family income was $60,000. The standard deviation in income is $20,000. IQ is measured on a scale such that the mean is 100, and the standard deviation is 15.
(a) Using this information, predict the expected IQ of a child whose family income is $70,000
(b) How reliable do you expect this prediction to be? Why? (your answer should be a property of correlation, not an about IQ)
(c) The family income now rises does the correlation predict that the child will have a higher IQ? Why? opinion
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/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
Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
Use the drop-down menus to complete the statements to match the information shown by the graph.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:00
Aaron paid $9.75 for markers that cost $0.75 each. he bought 4 times as many pencils for $0.35 each. how much did aaron pay for pencils?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 06:00
Atheme park has a tram that goes around the 2.5-mile perimeter of the park in 10 minutes. the equation s • (16 1 6 ) = 2.5 gives the speed of the tram. what exactly does s represent?
Answers: 2
You know the right answer?
In a population, the correlation coefficient between family income and child IQ is 0.30. The mean fa...
Questions
![question](/tpl/images/cats/en.png)
English, 30.11.2020 07:50
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 07:50
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 07:50
![question](/tpl/images/cats/istoriya.png)
History, 30.11.2020 07:50
![question](/tpl/images/cats/istoriya.png)
History, 30.11.2020 07:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 30.11.2020 07:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 07:50
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 07:50
![question](/tpl/images/cats/istoriya.png)
History, 30.11.2020 07:50
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 07:50
![question](/tpl/images/cats/mkx.png)
Arts, 30.11.2020 07:50
![question](/tpl/images/cats/en.png)
English, 30.11.2020 07:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 30.11.2020 07:50