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
Gwar [14]
3 years ago
5

Calculate the mean given the frequency table

Mathematics
1 answer:
ratelena [41]3 years ago
5 0

Answer:

15.6

Step-by-step explanation:

First, multiply the midpoint of each class by its frequency, as follows:

            Class      midpoint   frequency   midpoint*frequency  

            0-9         4.5             24                4.5*24 = 108

            10-19      14.5            20                14.5*20 = 290

            20-29    24.5           32                24.5*32 = 784

Total                                      76               1182

The mean is computed as the division between the addition of the "midpoint*frequency" column by the addition of "frequency" column.

mean = 1182/76 ≈ 15.6

 

You might be interested in
Treasury bills are paying a 4% rate of return. A risk-averse investor with a risk aversion of A = 1.85 should invest entirely in
kumpel [21]

Answer:

14.656%

Step-by-step explanation:

Data provided in the question:

Rate of return, r = 4% = 0.04

Risk aversion of A = 1.85

Standard deviation, σ = 24%

Now,

we have the relation

A = (E - r) ÷ σ²

E = expected return on portfolio

r = Risk free rate

on substituting the respective values, we get

1.85 = (E - 0.04) ÷ (0.24)²

or

0.0576 × 1.85 = (E - 0.04)

or

0.10656 + 0.04 = E

or

E = 0.14656 or

E = 0.14656 × 100% = 14.656%

8 0
2 years ago
Solve for m and b <br><br>(5,14) and (3,10)​
Elis [28]
Y=mx+b

Y1-Y2/X1-X2

14-10/5-3 = 4/2 = 2


Plug in (3,10):
(10)=2(3)+b

Solve:
10=6+b

B=4
M=2
6 0
3 years ago
If F(x) = 5x - 7 and G(X) = x2 - 41, what is G(F(x))?
Viktor [21]
C is the answer to this
4 0
3 years ago
Write the decimal 1.822 as a fraction. Do not write in lowest terms.
Degger [83]
Answer to your problem is:

1 411/500

I believe XD.
5 0
3 years ago
Q#1: Suppose that you have two different algorithms for solving a problem. To solve a problem of size n, the first algorithm use
svetlana [45]

Answer:

The one of -[n+2n+3n+4n]/nlne(10) has fewer operations because the value of n is <u>static</u><u>.</u>

The one of n! ( factorial ) is factorised up to n∞ hence has infinity operations.

7 0
3 years ago
Other questions:
  • Consider the system of equations
    14·1 answer
  • Jennifer bought three buckets at the hardware store. The total cost was $19.95 for all
    14·1 answer
  • Using the ratio of perfect squares method, what is square root of 14 rounded to the nearest hundredth? Do not use your calculato
    7·1 answer
  • A researcher posts a radio advertisement offering $35 in exchange for participation in a short study. The researcher accepts the
    14·1 answer
  • Given f(x) = -2x– 9x + 7, what is the value of f(-3)?
    10·2 answers
  • Identify the equation in slope-intercept form for the line containing the point (2,1) and parallel to y=5/3x−1/3.
    6·1 answer
  • 5. Find the sum or difference<br> (6d + 5) - (2 - 3d)
    5·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST. Which of the following statments is true about the equation shown? Mark all that are true. t (
    9·1 answer
  • Please help! I will give brainliest!
    15·2 answers
  • Name the Property of Congruence that justifies the statement : If segment EF is congruent to segment GH then segment GH is congr
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!