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
Andru [333]
3 years ago
5

Complete the chart to find the mean,variance,and standard deviation. 45 340 400 825

Mathematics
1 answer:
hoa [83]3 years ago
7 0

Answer:

<u>A. Mean =  402.5</u>

<u>B. Variance = 77,556.25</u>

<u>C. Standard Deviation =  278.49</u>

Step-by-step explanation:

Let's calculate the mean, variance and standard deviation of the set of numbers given:

A. Mean = (45 + 340 + 400 + 825)/4 = 1,610/4 =<u> 402.5</u>

B. Variance [(45 - 402.5)² + (340 - 402.5)² + (400 - 402.5)² + (825 - 402.5)²]/4 =  [(127,806.25 + 3,906.25 +6.25 + 178,506.25/4 =<u> </u><u>77,556.25</u>

C. Standard Deviation = √Variance = √77,556.25 =<u> 278.49</u>

You might be interested in
Find AB, given that line AD is the perpendicular bisector of BC
astraxan [27]

Answer:

AB = 9

Step-by-step explanation:

The perpendicular bisector divides Δ ABC into 2 congruent triangles, that is

Δ ABD ≅ Δ ACD , then

AB = AC = 9

5 0
3 years ago
here is points my children &lt;3 enjoy them just answer the question for the points: regards - drip king.
allochka39001 [22]

Answer:

thxs <3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the approximate value of x in the diagram below?
zavuch27 [327]

Answer:

Where is the diagram though..

Step-by-step explanation:

3 0
2 years ago
The air quality index, or aqi, measures how polluted the air is in your city and assigns a number based on the quality of the ai
makkiz [27]

The number of days in which the air quality index exceed 100 in the year 1988 is 75 days. Then the correct option is B.

<h3>What is a function?</h3>

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

The air quality index (AQI) is given by the function.

\rm n = 1.76t^2-13.32 +41

Where n be the number of days the AQI exceeds 100 in a given year.

For \rm t = -2, then we have

\rm n = 1.76(-2)^2-13.32(-2) +41\\\\n = 7.04+26.64+41\\\\n = 74.68 \approx 75

More about the function link is given below.

brainly.com/question/5245372

6 0
2 years ago
A punch recipe that serves 24 people calls for 4 liters of lemon-lime soda, 2 pints of sherbet, and 6 cups of ice. How much of e
harkovskaia [24]
Well 18 people is 3/4 of 24 people. So for each ingredient just multiply the value by 0.75.

3 litres of lemon line Soda
1.5 pints of sherbet
4.5 cups of ice
5 0
3 years ago
Other questions:
  • Enter an equation that represents the data in the table. Need Help.
    6·1 answer
  • Whats the value of 3√64
    5·1 answer
  • Which strategy can be used to multiply 6 x 198 mentally?
    6·2 answers
  • (Will Award Fast Brainliest &amp; Many Points!)
    6·1 answer
  • What is the radius for the circle given by the equation (x - 2)^2 + y^2 = 14?
    14·1 answer
  • To factor 9x2 - 4, you can first rewrite the expression as:
    6·2 answers
  • The symbol ≅ means...
    5·2 answers
  • What is the <br> area of 3in 4in 5in
    11·2 answers
  • Please help thanks.<br><br><br><br><br><br><br><br>.___________.​
    15·2 answers
  • Kyle recorded his height, in inches, from age 6 to age 18. The graph below shows the data that he recorded as a function of his
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!