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
cluponka [151]
3 years ago
12

A group of students were given a spelling test the table shows their mark Mark: 6,7,8,9,10 frequency:5,4,7,10,4 a) work out the

range of the marks. B)how many students are in a group C) work out the mean mark of the group
Mathematics
1 answer:
____ [38]3 years ago
6 0

Answer:

Step-by-step explanation:

From the information given,

Mark: 6,7,8,9,10

frequency:5,4,7,10,4

a) Range = highest mark - lowest mark

Range = 10 - 6 = 4

b) The number of students in the group is the sum of the frequency. Therefore,

Number of students = 5 + 4 + 7 + 10 + 4 = 30 students

c) Mean mark = (mark × frequency)/total frequency

[(6 × 5) + (7 × 4) + (8 × 7) + (9 × 10) + 10 × 4)]/ 30

Mean mark = (30 + 28 + 56 + 90 + 40)/30 = 244/30

Mean mark = 8.1

You might be interested in
Solve P=2G + 2M for G.<br> G=
shusha [124]

Answer:

G=\frac{P-2M}{2}

Step-by-step explanation:

P=2G+2M \\ \\ P-2M=2G \\ \\ G=\frac{P-2M}{2}

6 0
1 year ago
The rectangular prism shown is made up of unit cubes. Each unit cube has a length of one inch, a width of one inch, and a height
algol13

Answer:

cube" (and any subsequent words) was ignored because we limit queries to 32 words.

3 0
2 years ago
Describe the transformation of ƒ(x) = ex which is given by g(x) = −e2x + 6.
Arte-miy333 [17]

Answer:

g(x) is reflected across the x-axis and translated 6 units up compared to ƒ(x).

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Let x and y represent two real numbers. Write an algebraic expression to denote the quotient obtained when the product of the tw
sertanlavr [38]
(xy)/(x+y) hope this helps
5 0
3 years ago
Name the quadrilaterals that have four equal angles.
Alex73 [517]
B. square, rectangle
7 0
3 years ago
Read 2 more answers
Other questions:
  • For what values of x will the result of 5x be greater than 1
    7·1 answer
  • How many squares do you see?
    14·2 answers
  • 1. Write the next two terms in the pattern.
    5·1 answer
  • How many solutions y=x^2-10x+25
    13·1 answer
  • Estimates 879 times 8
    15·2 answers
  • If m&lt;BAD=102° and m&lt;CAD=27°, what is m&lt;BAC?
    6·1 answer
  • Find the area of a pizza with
    12·1 answer
  • A, B, C, or D please and ty
    10·1 answer
  • If 10 minutes talk-time costs $2, how much will 7 minutes cost?
    10·2 answers
  • Which choice is equivalent to the expression below?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!