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Scott, MIT Graduate
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(1.)Find the median of each set of numbers/ 1, 4, 9, 15, ...

Customer Question

(1.)Find the median of each set of numbers/ 1, 4, 9, 15, 25, 36. (2.) Find the mode of each set of numbers./41, 43, 56, 67, 69, 72/and 9, 8, 10, 9, 9, 10, 8. (3.) Statistics. A salesperson drove 238, 159, 87, 163, and 198 miles (mi) on a 5-day trip. What was the mean number of miles driven per day? (4.) Business and finance. The following scores were recorded on a 200-point final examination:
193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.
(a) Find the mean final examination score.
(b) Find the median final examination score.
(c) Is the mean or median a more useful representative of the final examination scores? Write a brief paragraph justifying your response. (5.) Questions 5-10 are from the chart attached. Round answers to the nearest tenth or tenth of a percent.((a) What is the population of Europe in 2000?(510,000,000)
(b) What is the total area of Europe?(3,800 miles) (Compare the population per square mile in Asia to the population per square mile in North America for the year 2000.Asia 17,400-NA-9,400. What is the percent increase in the population for all six inhabited continents, excluding Asia, from 1950 to 2000. What was the percent increase in the population in South America from 1900 to
2000? (10. (a) What was the mean population of the six continents or land masses that were habitable in 2000?
(b) What was the mean population in 1950?
(c) What was the percent increase in the mean population from 1950 to 2000?
Submitted: 6 years ago.
Category: Homework
Expert:  Scott replied 6 years ago.

Happy New Year!

Is there any way you can attach the chart to this question?

-Scott

Customer: replied 6 years ago.
graphicI will be asking more questions when you reply I will send chart. Thanks Chris Happy New Year
Expert:  Scott replied 6 years ago.

It didn't come through that time. Can you try again?

Thanks,

Scott

Customer: replied 6 years ago.
graphicgraphic
Expert:  Scott replied 6 years ago.

Hmm... All I see are little empty picture boxes.

Can you try again?

Or you can send the images to info@justanswer.com, and have them forward them to me.

-Scott

Customer: replied 6 years ago.
graphic
Expert:  Scott replied 6 years ago.

Great!

(1.)Find the median of each set of numbers/ 1, 4, 9, 15, 25, 36.

Median = middle number (or average of the two middle numbers):

= (9+15)/2

= 24/2

= 12

(2.) Find the mode of each set of numbers./41, 43, 56, 67, 69, 72/

mode = most common number(s) = none

and 9, 8, 10, 9, 9, 10, 8.

= 9 (since there are 3 of them)

(3.) Statistics. A salesperson drove 238, 159, 87, 163, and 198 miles (mi) on a 5-day trip. What was the mean number of miles driven per day?

mean = sum of the numbers / number of them

= (238+ 159+ 87+ 163+ 198) / 5

= 169 miles

(4.) Business and finance. The following scores were recorded on a 200-point final examination:
193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.
(a) Find the mean final examination score.

= sum/15 (since there are 15 scores)

= (193+ 185+ 163+ 186+ 192+ 135+ 158+ 174+ 188+ 172+ 168+ 183+ 195+ 165+ 183) / 15

= 176
(b) Find the median final examination score.

= middle number

put them in order:
135, 158, 163, 165, 168, 172, 174, 183, 183, 185, 186, 188, 192, 193, 195

= 183


(c) Is the mean or median a more useful representative of the final examination scores? Write a brief paragraph justifying your response.

In this case, the median is a better representation. More than half the students scored above the mean, so it makes it seem like the scores are lower than they actually were, mainly because of the person who got a 135.

(5.) Questions 5-10 are from the chart attached. Round answers to the nearest tenth or tenth of a percent.((a) What is the population of Europe in 2000?(510,000,000)
(b) What is the total area of Europe?(3,800 miles) (Compare the population per square mile in Asia to the population per square mile in North America for the year 2000.

pop per sq mile = population / square miles

Asia =(NNN) NNN-NNNN17400000

= 231.5

NA =NNN-NN-NNNN9400000

= 32.45

Asia's is much higher!

What is the percent increase in the population for all six inhabited continents, excluding Asia, from 1950 to 2000.

(total-asia2000)-(total-asia1950)/(total-asia1950)

= ((6279-4028)-(2556-1591) ) / (2556-1591)

= 1.333

= 133.3%

What was the percent increase in the population in South America from 1900 to
2000?

( pop2000-pop1900)/pop1900

= (515-38)/38

= 12.55

= 1255%

(10. (a) What was the mean population of the six continents or land masses that were habitable in 2000?

= total/6

= 6279/6 million

= 1046.5 million

=(NNN) NNN-NNNN/p>


(b) What was the mean population in 1950?

(2556/6) million

= 426 million

=NNN-NN-NNNN/p>


(c) What was the percent increase in the mean population from 1950 to 2000?

% = change/old

= (1046.5 - 426) / 426

= 1.457

= 145.7%

-Scott

Scott, MIT Graduate
Category: Homework
Satisfied Customers: 17710
Experience: MIT Graduate (Math, Programming, Science, and Music)
Scott and 7 other Homework Specialists are ready to help you
Customer: replied 6 years ago.

Find the mode of each set of numbers./41, 43, 56, 67, 69, 72/

Chris I didn't find the answer for theses one. Thank you.

1.Find the mode of each set of numbers./41, 43, 56, 67, 69, 72/

2.Round answers to the nearest tenth or tenth of a percent./510,000,000 and 3,800 miles.

Thank you

Expert:  Scott replied 6 years ago.

Hi there,

I'm Scott...

There is no mode in that set, since none of the numbers appear more than once.

The percentage ones were done above:

What is the percent increase in the population for all six inhabited continents, excluding Asia, from 1950 to 2000.

(total-asia2000)-(total-asia1950)/(total-asia1950)

= ((6279-4028)-(2556-1591) ) / (2556-1591)

= 1.333

= 133.3%

What was the percent increase in the population in South America from 1900 to
2000?

( pop2000-pop1900)/pop1900

= (515-38)/38

= 12.553

= 1255.3%


(c) What was the percent increase in the mean population from 1950 to 2000?

% = change/old

= (1046.5 - 426) / 426

= 1.457

= 145.7%

Let me know if you have any questions,

Scott

Customer: replied 6 years ago.
.510,000,000 and 3,800 miles round these two numbers to the nearest tenth. I must be overlooking
Expert:  Scott replied 6 years ago.

They are already rounded. That statement "round to the nearest tenth" was referring to the percentages that were listed in the other parts. I have rounded those as shown.

-Scott

Customer: replied 6 years ago.
thank you
Expert:  Scott replied 6 years ago.
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Customer: replied 6 years ago.
Have aood weekend

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