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
Snowcat [4.5K]
3 years ago
12

Students collected data about the capacities of their lungs by inflating balloons with a single breath. they measured the circum

ference of the balloons in centimeters. each student completed three trials and calculated the average. balloon circumference (cm) student trial 1 trial 2 trial 3 average 1 66.0 66.5 68.5 67.0 2 67.5 64.0 70.5 67.3 3 60.3 60.5 60.5 61.0 4 55.0 58.0 59.0 57.3 which student miscalculated her average? 1. student 1 2. student 2 3. student 3 4. student 4
Mathematics
2 answers:
marishachu [46]3 years ago
6 0
The given data is the following:

Student Trial 1  Trial 2 Trial 3 Average
-----------  --------  --------  --------  ------------
    1           66.0    66.5   68.5     67.0
    2          67.5     64.0   70.5     67.3
    3          60.3     60.5   60.5    61.0
    4          55.0     58.0   59.0    57.3

Let us check the reported averages.
Student 1:
Average = (66.0 + 66.5 + 68.5)/3 = 67.0   Correct
Student 2:
Average = (67.5 + 64.0 + 70.5)/3 = 67.3    Correct
Student 3:
Average = (60.3 + 60.5 + 60.5)/3 = 604    Incorrect
Student 4:
Average = (55.0 + 58.0 + 59.0)/3 = 57.3    Correct

Answer: Student 3
tamaranim1 [39]3 years ago
3 0
Look at the given data & calculate the average of each students data,

1) 66, 66.5, 68.5, 67
Average = \frac{66+66.5+68.5}{3} = 67 CORRECT

2) <span>67.5 64.0 70.5 67.3
</span>Average = \frac{67.5+64+70.5}{3} = 67.3 CORRECT

3) <span>60.3 60.5 60.5 61.0
</span>Average = \frac{60.3+60.5+60.5}{3} = 60.43 INCORRECT

4) <span>55.0 58.0 59.0 57.3
</span>Average = \frac{55+58+59}{3} = 57.3 CORRECT



Therefore, 3. Student 3 is the correct answer.

You might be interested in
What are the Factors of 2,3,4,5
Dominik [7]

Answer:for 5

Step-by-step explanation:1,5

7 0
3 years ago
What is the area of triangle GHJ
EastWind [94]
A = 1/2 bh = 1/2 (3)(4) = 12/2 = 6

answer is B. 6 square units
4 0
3 years ago
How do you find DE, Round to nearest 10th
Sergeu [11.5K]

Answer:  DE\approx6.0

Step-by-step explanation:

Observe in the figure given in the exercise that four right triangles are formed.

In this case you can use the following Trigonometric Identity to solve this exercise:

cos\alpha=\frac{adjacent}{hypotenuse}

From the figure you can identify that:

\alpha =53\°\\\\hypotenuse=10\\\\adjacent=BE=DE

Then, you can substitute values:

cos(53\°)=\frac{DE}{10}

The next step is to solve for DE in order to find its value. This is:

10*cos(53\°)=DE\\\\DE=6.01

Finally, rounding the result to the nearest tenth, you get that this is:

DE\approx6.0

7 0
3 years ago
(-0.3) ÷ (-0.2)+(-2.56)<br><br><br> In whole numbers with steps please
Valentin [98]

Answer:

-1 to the nearest whole number.

Step-by-step explanation:

(-0.3) ÷ (-0.2)+(-2.56)

Order of operations - the division is done first:

= 1.5 = (-2.56)

= 1.5 - 2.56

= -1.06.

6 0
3 years ago
Suppose that the manager of a company has estimated the probability of a super-event sometime during the next five years that wi
daser333 [38]

Answer:

The answer is d) 0.2303%

6 0
3 years ago
Other questions:
  • What is y=-6/7x+4 moved 9 units up
    10·2 answers
  • Leah babysits during the day for three dollars per hour and at night for five dollars per hour. If she worked five hours in our
    11·2 answers
  • Plz help me I will mark brainlest whoever answers with explanation​
    8·1 answer
  • A six-sided number cube is tossed and a coin is flipped.
    14·2 answers
  • Jonathan, a college business student wants to study how many pages of notes fellow classmates took during a semester for a finan
    11·1 answer
  • A pile of newspapers in Ms.
    5·1 answer
  • (3, -5)(0, 4)<br> Write the equation of a line using the point slope formula
    5·1 answer
  • Need help can some help me explain what the measure of angle A is
    8·1 answer
  • Solve: x - (-6) = -2
    10·1 answer
  • Find the area of the circle.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!