The best approach to this is to use the formular
Standard error = standard deviation / sqrt( sample size)
standard deviation = 0.75 hours
sample size = 35
Hence, Standard error = 0.75 /sqrt(35) = 0.126 = 0.13
Desmos graphing calculator helps, look it up online.(:
divide 8 into 3
0.375
8 | 3.000
2 4
-----
60
56
----
40
40
----
0
0.375 is a decimal
times it by 100 to get percent = 37.5 %
(when you times decimals by 100 you simply move the decimal over two places right)
Answer:
9 value is ====*0.9*
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