Two race cars,car x an y,are at the starting point of a two km track at the same time.car x and car y make one lap every 60 s an
d every 80 sec respectively.
How long, in minutes, will it take for the faster car to be 5 laps ahead of the slower car?
How long, in minutes, will it take for the faster car to be 5 laps ahead of the slower car?
1 answer:
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Answer:
Step-by-step explanation:
Daily temp(in F) Cakes sold
42 39
45 52
48 31
54 61
59 72
62 35
64 61
65 34
67 58
75 45
84 24
To find whether there is an association between these two let us find the correlation coefficient between these two variables.
r=-0.1975
Since |r|<0.5, correlation is weak.
Let us test the hypothesis r =0
H0:r=0
Ha:r not equals 0
Test statistic =
p =0.298
Since p value >0.10, at 90% significance level we accept that there is no association.