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
Shkiper50 [21]
3 years ago
11

Some people took part in a game. The frequency shows information about their scores.

Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0

Answer:

The mean = 17.54

Step-by-step explanation:

Form a table as below;

<u>Interval         Frequency{f}      Midpoint of frequency{x}          fx    </u>

1-7                    19                         4                                            76

8-10                  14                         9                                            126

11-15                  15                         13                                           195

16-20                20                        18                                           360

21-35                 10                        28                                          280

36-50                13                         43                                          559

Sum                   91                                                                        1596

The mean  of grouped data = Sum of { Interval Midpoint * Frequency } /Sum of frequency

The mean= 1596 / 91

The mean = 17.54

You might be interested in
What is the area of rectangle whose<br> height is 2.5 in and base is 12 in?
WARRIOR [948]

Step-by-step explanation:

Area of a rectangle is base times height.

A = bh

A = (12 in) (2.5 in)

A = 30 in²

8 0
3 years ago
Karmen returned a bicycle to Earl's Bike Shop. The sales receipt showed a total paid price of $211.86, including the 7% sales ta
MakcuM [25]

Answer:

$198

Step-by-step explanation:

198x.07=13.86

198+13.86=211.86

7 0
3 years ago
How do I work this out?
Crank

Answer:

$503.90

Step-by-step explanation:

6500 X .93= 6045

6045/12=503.90

8 0
3 years ago
Read 2 more answers
Please give me the answer to this problem
Darya [45]

Total 27inch^

Calculation of 1 rectangle +1 triangle(11-7=4 is the base)

triangle    x^+4^=5^

                  x^+16=25

                  x^=9

                    x=3      (height=3)

Sides of triangle  Base=4   Hypotenuse=5     height =3 

area 1/2 4  x  3  =2x3=6

Area triangle =6

Area Rectanglel   7x3=21

21+6=27 inch^ total area



5 0
3 years ago
Construct an equilateral triangle of side 7cm and construct circumcircle.
zalisa [80]

Answer:

To do this, all you need is to draw triangle with each side being 7 cm, and a circle that intersects all three of its corners.

Step-by-step explanation:

  1. With a ruler and a pencil, draw a 7cm line.
  2. With a compass set to a radius of 7cm draw an arc centered around the right end of the line.
  3. With the same compass, still at 7cm, draw an arc centered around the left end of the line.
  4. These two arcs will intersect on either side of the line (you only need one side, so you only need a small arc in the right place, roughly where you think the third point if the triangle is.
  5. Where those arcs intersect is the third point on your triangle.  Mark that, and then trace two lines from that point to either end of the line segment you started with.

<em>You now have an equilateral triangle with 7cm sides.  Next you need to draw the circle</em>

  1. Measure the halfway point on two of your three lines.
  2. Draw a line from that each of those halfway points to the opposite corner. The new lines you're drawing will be perpendicular to the edge your measuring against.
  3. You have now drawn two line segments, and they intersect in the center of the circle.  Now take your compass and set its radius to the distance from that center point to one of the three corner points.
  4. Centered on that middle point, trace a circle with the selected radius.

And you're done!

6 0
2 years ago
Other questions:
  • Find each percent of change. round to the nearest whole percent if necessary. state whether the percent of change is an increase
    11·1 answer
  • Angle 0 is in the second quadrant, and sin 0=3/5
    15·1 answer
  • Triangle ABC has vertices A(5, 3) , B(3, 7) , and C(1, 4) . Triangle ABC is dilated, and the vertices of the image are A′(1.25, 
    7·1 answer
  • in June Mr Chen's students read 40 books. In July, they read 30 books. what is the percent increase or decrease in the number of
    9·2 answers
  • Three numbers have a sum of 68. The second number is 1 less than twice the first. The third number is three times the second. Wh
    10·1 answer
  • What is the slope of the line given by the equation y = 3x? enter your answer as an integer.
    6·1 answer
  • Simplify the expression
    13·1 answer
  • I need help, I need to now if C is on the perpendicular bisector of AB. I don’t understand. Thanks
    6·1 answer
  • Which statement explains how to calculate the mean of a set of data? O A. Subtract the smallest from the largest value. O B. Add
    15·2 answers
  • A circle has its center at (6,3). One point on the circle is (3, 1). Which is
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!