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goat46
06.05.2020 •
Mathematics
A recent survey asked 90 students "How many hours do you spend on the computer in a typical day?" Of the 90 respondents 3 said 1 hour, 5 said 2 hours, 15 said 3 hours, 25 said 4 hours, 20 said 5 hours, 15 said 6 hours, 5 said 7 hours 1 said 8 hours and 1 said 9 hours. What is the average (mean) number of hours spent on the computer?
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Ответ:
This question is based on the concept of mean. Therefore, 5 hours is the average (mean) number of hours spent on the computer.
Given:
A recent survey asked 90 students "How many hours do you spend on the computer in a typical day?" of the 90 respondents.
3 said - 1 hour,
5 said - 2 hours,
15 said - 3 hours,
25 said - 4 hours,
20 said - 5 hours,
15 said - 6 hours,
5 said - 7 hours
1 said - 8 hours and 1 said 9 hours.
We need to determined the average (mean) number of hours spent on the computer.
By using the formula ,
Therefore, 5 hours is the average (mean) number of hours spent on the computer.
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Ответ:
5 hours.
Step-by-step explanation:
Add up all times and divide by the number of times.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45
9 different times.
45 / 9 = 5
Ответ:
On each, first identify as a Future Value annuity or Present Value annuity. Then answer the question. 1) How much money must you deposit now at 6% interest compounded quarterly in order to be able to withdraw $3,000 at the end of each quarter year for two years?
Step-by-step explanation: hope this helps