Answer:
it just be positive 5
Step-by-step explanation:
Answer: There will be 20 motorcycles and 26 cars
let me know if you want me to explain:)
Step-by-step explanation:
If you want to check multiply 26 by the amount of wheels on each car (4) to get 104 total car wheels, then multiply the 20 motorcycles by the wheels of each motorcycle (2) to get 40. Lastly add the 104 and 40 together to get 144 the total amount of wheels in the parking lot.
Hope this helps :)
Answer:
At least 547 records need to be studied.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
Z is the zscore that has a pvalue of 
.
And the margin of error is:
95% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
In this problem, we have that:
At least 547 records need to be studied.
Answer:
65,212
Step-by-step explanation:
She buys 24 dvds in 12 weeks.
