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
emmainna [20.7K]
1 year ago
8

What is the variance for this activity? activity a m b t es ef ls lf 7 1 1.5 2 1.50 8 9.50 8 9.50

Mathematics
1 answer:
Lina20 [59]1 year ago
8 0

The variance for this activity  is  mathematically given as

Var=0.026  

<h3>What is the variance for this activity?</h3>

A data set's variance may be seen as a measurement of the spread that exists between the individual integers. When evaluating the asset allocation of a portfolio, investors employ an expression known as the variance equation.

After careful consideration of the  table given in the question, we have that

Pessimistic time tp=2

optimistic time to=1

most likely time tm=1.5

Generally, the equation for variance is  mathematically given as

\sigma^2=\frac{tp-to}{6}^2

Therefore

\frac{2-1}{6}^2\\\\\sigma^2=1/6^2

Var=0.026  

In conclusion,  the variance for this activity

Var=0.026  

Read more about variance

brainly.com/question/14116780

#SPJ4

You might be interested in
What’s the answer????
serious [3.7K]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the value of h?
emmainna [20.7K]
The angle on one side of a straight line is 180°, so 40° + 60° + h = 180°.
If you rearrange this you will get h = 180° - 60° - 40°, this will give you: h = 80°.
Hope this helps
5 0
2 years ago
The mass of an electron is approximately 9 × 10-28 grams, while the mass of a neutron is approximately 2 × 10-24 grams. Which of
aalyn [17]

Answer: the mass of a neutron is approximately 2,000 times the mass of an electron

Step-by-step explanation:

- the easiest way to solve this (in my opinion) is to simply divide the mass of a neutron by the mass of an electron

- 2 x10^{-24} / (9 x10^{-28} )

=  (2/9) x10^{-24--28}

=  (2/9)x10^{-24+28}

≈  0.2222x10^{28-24}

≈ 0.2222x10^{4}

≈ which is approximately 2222    

- so 2222 is approximately 2000 times

- therefore, the mass of a neutron is approximately 2,000 times the mass of an electron

hope this helps :)

4 0
2 years ago
Read 2 more answers
Evaluate the expression when X= -2 x^2 + 9x + 3
TiliK225 [7]

Answer:

-11

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x² + 9x + 3

x = -2

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                  (-2)² + 9(-2) + 3
  2. Exponents:                                                                                                        4 + 9(-2) + 3
  3. Multiply:                                                                                                             4 - 18 + 3
  4. Subtract:                                                                                                            -14 + 3
  5. Add:                                                                                                                   -11
3 0
3 years ago
Which is bigger: 3/8 or 7/20
umka21 [38]
\rm ^{20)}\frac{3}{8}= \frac{60}{160}  \\ \\ ^{8)}\frac{7}{20}= \frac{56}{160} \\ \\ So~ \frac{3}{80}~is~bigger~because~60\ \textgreater \ 56.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Given the point (3,4) and the slope of 6, find Y when X =27
    7·1 answer
  • Jacob is working two summer jobs, making $10 per hour washing cars and making $8 per hour landscaping. In a given week, he can w
    15·1 answer
  • What is 5 2/3 divided by -1 2/15 pls help and hurry ❤️❤️
    10·1 answer
  • Find the volume of a shipping crate with the length of 2 meters, a width of 1.5 meters, and a height of 3 meters.
    8·2 answers
  • Phil earns $9.50 an hour
    13·2 answers
  • Angelina factored (x - 48 ) and wrote that it was equal to (x^2 - 4^2)^2(x^2 + 4^2). Use complete sentences to explain how you c
    8·1 answer
  • 1.
    7·1 answer
  • One number is seven more than the other. Their sum is fifteen. Find the numbers.
    9·2 answers
  • There were seven hundred eight employees working in an office building seventy one of them left to go have lunch how
    10·2 answers
  • Does this equation have one solution, many solution or no solutions? and why? I need to show my work
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!