Answer:
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The measure of center is mean. You would be finding the average number of minutes spent studying.
To find the mean of the data you would add all of the numbers up and divide by the total amount of numbers you added.
60+70+45+60+80+35+45
=395
395/7
=<span>56.4285714286</span>
Answer:
The part of the expression representing the amount of tax to be paid is;
0.08(507)
Step-by-step explanation:
Here, we want to select the part of the expression that represents the amount of tax Deborah has to pay
From the expression, we have ;
0.08(507) + 50h
Kindly note that we can have 0.08 as 8/100
8/100 is same as 8%
when we represent taxes, it is usually a percentage of something
In that case, the tax part would be ; 0.08(507)
Answer:
4/25
Step-by-step explanation:
It is a fraction with 4 in the numerator and 25 in the denominator.
4
__
25
Answer:
a) n = 100
s = 8
Confidence interval = 95%
Z at 95% = 1.96
Confidence interval formula : to
Substitute the values :
Confidence interval : to
Confidence interval : to
b)n = 200
s =11
Confidence interval = 90%
Z at 90% = 1.64
Confidence interval formula : to
Substitute the values :
Confidence interval : to
Confidence interval : to