1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kruka [31]
3 years ago
12

A math professor is wondering if students today are better or worse than in the past. He has given the same final to this year's

class that he gave ten years ago. Compute mean, median, and mode for both classes and write a paragraph summarizing the differences.
This Year
35 45 65 75 87
80 69 71 53 90
99 95 70 82 73
93 67 61 57 74
72 77 71 81 83

Ten Years Ago
56 77 75 76 59
74 51 89 55 79
67 77 69 91 68
90 65 79 69 79
87 86 98 91 95
Mathematics
1 answer:
masha68 [24]3 years ago
3 0

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following data:

This year :

35, 45, 53, 57, 61, 65, 67, 69, 70, 71, 71, 72, 73, 74, 75, 77, 80, 81, 82, 83, 87, 90, 93, 95, 99

Mean = ΣX / n = 1825 / 25 = 73

The mode = 71 ( most frequently occurring)

Median = 1/2(n+1)th term = 1/(26) = 13th term

Median = 73

10 years ago :

51, 55, 56, 59, 65, 67, 68, 69, 69, 74, 75, 76, 77, 77, 79, 79, 79, 86, 87, 89, 90, 91, 91, 95, 98

Mean = ΣX / n = 1902 / 25 = 76.08

The mode = 79 ( most frequently occurring)

Median = 1/2(n+1)th term = 1/(26) = 13th term

Median = 77

According to the computed statistics, we can conclude that, today is worse than the past as the average score which is almost similar to the median value is higher 10 years ago and the modal score is better 10 years ago as well.

You might be interested in
The slope of the line below is -3. Is the coordinates of the labeled point to find a point - slope equation of the line
puteri [66]
Point slope form = y - b= m ( x - a )

where y and x stay the same

m is the slope

and (a, b) (any coordinate on the graph)

based on the point (5, -7)

Y - (-7) = -3 (x - 5)

however, the - cancels out the negative 7 making I positive

Y + 7 = -3(x - 5)












3 0
3 years ago
What is equal to 4y+y<br> Thank you so much!<br> Need an answer ASAP
hoa [83]

Answer:

5y

Step-by-step explanation:

add like terms

since 4y and y are like terms you can add them to make 5y

4 0
3 years ago
Which relation is a function?
sashaice [31]

Answer:

Step-by-step explanation:

B. for it to be a proper function, it must pass the vertical line test (meaning, if you were to fill a continuous line between each of the dots, and then drew a string vertical line down at any point along the function, that vertical line cannot intersect with the function line more than once.

A, would fail the vertical line test, C< and D would also fail, as a vertical line would intersect/cross the function line more than once.

7 0
3 years ago
PLEASE HELP I JUST NEED THE ANSWER NOT AN EXPLANATION TO HOW YOU GOT THE ANSWER
Yuki888 [10]

The answer is b, > because 30.17 is bigger than 30.018

6 0
3 years ago
What is 778,400,000 in scientific notation?
FinnZ [79.3K]

When working with very large or very small numbers, scientists, mathematicians, and engineers use scientific notation to express these quantities. Scientific notation is a mathematical abbreviation, based on the idea that it is easier to read an exponent than to count many zeros in a number. Very large or very small numbers need less space when written in scientific notation because the position values ​​are expressed as powers of 10. Calculations with long numbers are easier to do when using scientific notation

4 0
3 years ago
Read 2 more answers
Other questions:
  • A local high school held a two-day fundraiser selling lunches. The equations shown represent the amount of money the school coll
    15·1 answer
  • What the fraction or mixed number of 3.4
    15·2 answers
  • 12 × 6 = 72
    8·2 answers
  • Q. You are working on an air conditioning system. A
    7·1 answer
  • Which of the equations below represents a line perpendicular to the y-axis?
    13·1 answer
  • What is the quotient?<br> (-3)<br> (-3)2<br> Og<br> 9<br> O 9
    9·1 answer
  • How to solve this one​
    14·2 answers
  • Which of the following is a solution to the inequality 5x-25&gt;18
    10·1 answer
  • Suppose jamal fell during one race and recorded a time of 210s. Which of the mean, median, and mode would be most affected
    12·1 answer
  • The table shows the relationship between the number of cups of cereal in the number of cups of raisins in a cereal bar recipe ja
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!