ANSWER: 60
75/100 = 3/4
45 divided by 3 is 15
15 multiplied by 4 is 50 (=4/4 = 100%)
Answer:
the 90% confidence interval is ( 48.684 , 51.316 )
Step-by-step explanation:
Given that :
the sample size = 36
Sample Mean = 50
standard deviation = 4.80
The objective is to calculate a 90% confidence interval.
At 90% confidence interval ;
the level of significance = 1 - 0.9 = 0.1
The critical value for
= 1.645
The standard error S.E =
=
= 0.8
The Confidence interval level can be computed as:
For the lower limit :
=50 - 1.316
= 48.684
For the upper limit :
=50 + 1.316
= 51.316
Thus, the 90% confidence interval is ( 48.684 , 51.316 )
Answer:
This is the same as writing (x^20)/(y^15)
===================================================
Work Shown:
In the second step, I used the rule that (a*b)^c = (a^c)*(b^c)
In step 3, I used the rule (a^b)^c = a^(b*c)
In the last step, I used the rule a^(-b) = 1/(a^b)
Answer:
Step-by-step explanation:
if you need help let me know
Understanding subtraction of rational numbers as adding the additive inverse p-q=p+(-9)