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
Virty [35]
3 years ago
13

I really need help with this pleaseeee

Mathematics
1 answer:
Sedaia [141]3 years ago
4 0

Answer:

σ = 11.68

Step-by-step explanation:

σ =  \sqrt{ \frac{Σ{(xi -  μ)}^{2} }{N} } \\ where \: σ = population \: standard \: deviation \\ xi = each \: value \: from \: population \\  μ = population  \: mean \\ N = size \: of \: population

σ =  \sqrt{ \frac{Σ{(9 - 26)}^{2} + {(16 - 26)}^{2} +{(30 - 26)}^{2} +{(35 - 26)}^{2} + {(40 - 26)}^{2}}{5} } \\ σ =  \sqrt{ \frac{Σ{((-17)}^{2} + {(- 10) }^{2} +{(4) }^{2} +{(9) }^{2} +{(14) }^{2})}{5}} \\ σ =  \sqrt{ \frac{Σ ({289} + {100} +{16} +{81} + {196})}{5} } \\ σ =  \sqrt{ \frac{682}{5} }  \\ σ  =  \sqrt{136.4} \\  σ = 11.679041056525\\ σ = 11.68

You might be interested in
I NEED HELP I WILL GIVE BRAINLIEST!!!
sergiy2304 [10]

Answer:

The probability is 2/5.

Step-by-step explanation:

4/5 is the probability of not getting a 5

1/2 is the probability of flipping heads

4/5x1/2 = 4/10 = 2/5

3 0
3 years ago
Algebra 1 B Unit 7 Lesson 2 Semester B Someone please Help
Dafna1 [17]
What would you like help with?
6 0
3 years ago
In ΔUVW, w = 9 cm, v = 2.2 cm and ∠V=136°. Find all possible values of ∠W, to the nearest 10th of a degree.
Alja [10]

Complete Question

In ΔUVW, w = 9 cm, v = 22 cm and ∠V=136°. Find all possible values of ∠W, to the nearest 10th of a degree.

Answer:

16.5°

Step-by-step explanation:

In ΔUVW, w = 9 cm, v = 22 cm and ∠V=136°. Find all possible values of ∠W, to the nearest 10th of a degree.

We solve using Sine rule formula

a/sin A = b/sin B

We are solving for angle W

∠V=136°

Hence:

22 /sin 136 = 9 /sin W

Cross Multiply

22 × sin W = sin 136 × 9

sin W = sin 136 × 9/22

W = arc sin [sin 136 × 9/2.2]

W = 16.50975°

W = 16.5°

3 0
3 years ago
Melody used the table at the right to find the number of people served with 15 pounds of ground turkey. Find her error and corre
Stolb23 [73]

If Melody used the table and still made a mistake, you can
imagine how badly we'll do if we can't even SEE the table.

7 0
3 years ago
Help me with this math for 50 points
Lady_Fox [76]

The hot tub takes in 1,520 watts everyday to keep its water warm. A kilowatt has 1,000 watts (hence kilo means 1,000). 1,520 divided by 1,000 equals 1.520. However, this isn't free electricity - Each kilowatt costs 8 cents or 0.08 of a dollar. 1.520 x 0.08 = 12.160 or $12.16. We aren't done yet! This hot tub runs for 4 months (and we are assuming these months exactly have 30 days each). 4 x 30 = 120. $12.16 x 120 = $1,459.20. In order to keep the hot tub running, you need to pay 1,459.20 for all the kilowatts of electricity it takes.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 3/4 divided by 1/2
    10·2 answers
  • What sets does radical 12 belong to
    15·1 answer
  • rob says all numbers have an even number of factors marcia says some numbers have an odd number who is correct
    15·2 answers
  • What is the answer to (3x-15) degrees
    14·1 answer
  • Which of the following does extrema represent
    7·1 answer
  • 3. What is the volume of the figure?<br>A. 15 cm<br>B. 33 cm<br>C. 45 cm <br>D. 54 cm<br>​
    12·2 answers
  • I will give brainiest to whoever answers correctly !!
    11·1 answer
  • What is the multiplicative inverse of 2"?<br> WIN<br> 2<br> оо<br> نما
    10·2 answers
  • What is the domain of (f/g)(x) 3x+1 / 5x-1
    9·1 answer
  • Name the angle and the intercepted arc.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!