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Radio Stations The approximate number of radio
stations on the air for selected years from 1950 to
2000 is shown in the table.
x (year) 1950 1960 1970
y (stations) 2800 4100 6800
x (year) 1980 1990 2000
y (stations) 8600 10,800 12,600
Estimation Discuss ways to estimate the number
of radio stations on the air in 1975. Compare yourestimates with the actual value of 7700 stations.
Repeat this estimate for 1985 and compare it to the
actual value of 10,400. Discuss your results.
 2 years ago
 2 years ago
Radio Stations The approximate number of radio stations on the air for selected years from 1950 to 2000 is shown in the table. x (year) 1950 1960 1970 y (stations) 2800 4100 6800 x (year) 1980 1990 2000 y (stations) 8600 10,800 12,600 Estimation Discuss ways to estimate the number of radio stations on the air in 1975. Compare yourestimates with the actual value of 7700 stations. Repeat this estimate for 1985 and compare it to the actual value of 10,400. Discuss your results.
 2 years ago
 2 years ago

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waleed_khaBest ResponseYou've already chosen the best response.0
Is it mathematics or space question ? !!!!! I like your teacher .. sorry i wish 2 help . good luck
 2 years ago

dumbcowBest ResponseYou've already chosen the best response.1
you could do a linear regression: y = 202x + 2552, where x is years after 1950
 2 years ago

agdgdgdgwngoBest ResponseYou've already chosen the best response.0
dumbcow is right. You can try to fit a line to the data, and then use that line to predict stations for 1975 and 1985
 2 years ago

mcanthony.asareboachieBest ResponseYou've already chosen the best response.0
Please where from that equation y = 202x + 2552
 2 years ago

ash2326Best ResponseYou've already chosen the best response.3
for 1975,x= 19751950 so x =25 y=202x+25 y=5050+25 y=5075, so there is a large gap from actual value of 7700 for 1985 x=19851950=35 y=202x+25 y=202*35+25=7105 so there is a large variation from actual value of 10, 400
 2 years ago

dumbcowBest ResponseYou've already chosen the best response.1
i used a graphing calculator...Excel could also do it for you
 2 years ago

mcanthony.asareboachieBest ResponseYou've already chosen the best response.0
Please,Dumbcow for 1975 and 1950,that means I will use 25 and for 1985 and 1950 I will use 35 for the values of x?
 2 years ago

mcanthony.asareboachieBest ResponseYou've already chosen the best response.0
Please Dumbcow can you tell me how u got the equation,more especially with the 2552
 2 years ago

dumbcowBest ResponseYou've already chosen the best response.1
its in the excel sheet i attached...make a chart, add a trend line and Excel does the regression for you. Thats how i got the equation
 2 years ago

dumbcowBest ResponseYou've already chosen the best response.1
For graphing calculators, insert data points into 2 lists then choose LinReg from "STAT">"CALC"
 2 years ago
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