There is nearly 52 weeks in a year, so 9 x 52 would be 468
2 concerts at 40 each would be 80, so 468+80 would be 548
Valerie spends 548$ a year on music entertainment.
C and D are the same, so its between A and B, which concludes your answer should be B
Answer:
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is
The sample proportion is
Given that the confidence interval is 95% then the level of significance is mathematically represented as
Next we obtain the critical value of the from the normal distribution table, the value is
Generally the margin of error is mathematically represented as
=>
=>
The 95% confidence interval is
=>
=>
X/133 = 105/100 solve for x by using proportions