Answer:
9.65 (or 10 to round up)
Step-by-step explanation:
48.25-20%= 38.6
$9.65 gone
Answer:
79.01 + n
Step-by-step explanation:
81.56 + n - 2.55
Put like terms together.
81.56 - 2.55 + n
Solve.
81.56- 2.55
= 79.01
Add all values together and add n in the end.
79.01 + n
Therefore the answer is 79.01 + n
Answer: 1.960
Step-by-step explanation:
The value of z we use to calculate a confidence interval with a (
) confidence level is a two-tailed test value i.e. represented by :-

Given : The level of confidence: 
Then, significance level : 
With the help of standard normal distribution table for z , we have

Hence, the value of z should be used to calculate a confidence interval with a 95% confidence level =1.960
What is the interquartile range of this data set? 2,5,9,11,18,30,42,55,58,73,81
Tcecarenko [31]
Answer:
I think it's 49 I'm sry if I'm wrong hope you luck
Step-by-step explanation:
You flip the sign from > to < only when you are dividing by a negative number and in this case it would be negative 9.