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
makvit [3.9K]
3 years ago
14

Please help me! It isn’t hard im just not sure how to do it .

Mathematics
1 answer:
pishuonlain [190]3 years ago
4 0

Answer:

a. Semester 1: 86.8, Semester 2: 87

b. Semester 1: 5.7, Semester 2: 6.3

c. Semester 1 because the standard deviation of the first semester was lower than of the second. This shows that his scores were closer to the mean and therefore he was more consistent.

Step-by-step explanation: Find the mean by taking the sum of the values for each semester and divide that sum by the number of values to find the average. Do this for both semesters. Now, find the absolute value of the difference between the mean and each value of the corresponding data set. Square each if those differences and sum them up. Now divide that sum by the number of data values and take the square root. This number is your standard deviation. You will use the standard deviations to make the comparison for part c. I hope this makes sense and helps!!!!

You might be interested in
What is number 9 if you leave a step by step ill mark you as best question
chubhunter [2.5K]
The answer choice is B. 50 dollars per month.
50 times 3 is 150 and 50 times 6 is 300.
7 0
2 years ago
Read 2 more answers
What was the first mall
DochEvi [55]
The first shopping mall was the Country Club Plaza<span>, founded by the J.C. Nichols Company and opened near Kansas City, Mo., in 1922</span>
8 0
3 years ago
Read 2 more answers
Which of these figures represents a line?
Anastaziya [24]

Answer:

Figure C

Step-by-step explanation:

Figure A represents a ray because it has arrow only on one end.

Figure B is a line segment because it stops on both ends.

Figure C is a line because it has arrow on both ends.

Figure D is an angle, because it is 2 rays joined at a vertex.

6 0
3 years ago
Help me please on this question .....!.!.!.!.!.!.!.!.!.!.
Zigmanuir [339]

If you look through the chart, you'll see that in each column,
the amount of money donated is 1/5 the number of lunch
specials sold.

The equation is:

Donation amount = (1/5) · (lunch specials sold) .

The constant of proportionality in money per lunch special sold
is $1/5 or 20 cents.
7 0
3 years ago
X^2 + 12 =3 solve, give exact solution(s) no rounding or decimals
Papessa [141]

Answer:0

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • On an amusement park map the wooden rollercoaster is located at 0,4.The hot dog stand is located at 4,4 .And the log flume is lo
    12·1 answer
  • What is the definition of square root?
    13·2 answers
  • What is the median value of the data set shown on the line plot?
    6·2 answers
  • What number is 100 times as great as 0.3
    15·1 answer
  • If f(x) = 3x - 4 and g(x) = x + 5, then find f(x) - g(x).
    5·2 answers
  • Solve the triangle using law of cosines
    6·1 answer
  • -7x^2+14x+21=0<br>answer?​
    8·1 answer
  • What is the ordered pair rule for a 270 degree counterclockwise rotation?
    10·1 answer
  • 165 is what percent of 150 ?
    8·2 answers
  • Is (4, -2) a solution of the inequality? Why or why not?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!