Mathematics, 06.01.2021 17:40 ayandjay01
Identify which of the following is most appropriate: discrete random variable, continuous random variable, or not a random variable.
a. Exact weights of the next 100 babies born in the United States
b. Responses to the survey question "Which political party do you prefer?"
c. Numbers of spins of roulette wheels required to get the number 7
d. Exact foot lengths of humans
e. Shoe sizes (such as 8 or 8Ā½) of humans.
Answers: 2
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Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
Answers: 2
Identify which of the following is most appropriate: discrete random variable, continuous random var...
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