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
torisob [31]
3 years ago
7

Question in attachment

Mathematics
1 answer:
Elan Coil [88]3 years ago
7 0

Answer:

The range within 1 standard deviation :155.12 ,328.38

Step-by-step explanation:

Data: 338+160+210+180+166+272+128+409+240+250+160+300+340+200+194+132+202+180+420+380+325+185+233+198

Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}

Mean =\frac{338+160+210+180+166+272+.........+233+198}{24}

Mean =241.75

\text{Standard deviation} = \sqrt{\frac{\sum(x-\bar{x})^2}{n-1}}

Standard deviation = \sqrt{\frac{(338-241.75)^{2}+(160-241.75)^{2}+......+(185-241.75)^{2}+(233-241.75)^{2}+(198-241.75)^{2}}{24-1}}

Standard deviation =86.63

Range within 1 standard deviation :(\mu-\sigma,\mu+\sigma)

Range within 1 standard deviation :(241.75-86.63,241.75+86.63)

Range within 1 standard deviation :155.12 ,328.38

Hence The range within 1 standard deviation :155.12 ,328.38

You might be interested in
Plz help what is this 8h+(-7.9d)-16+5d-3.4h
Klio2033 [76]

Answer:4.6h-2.9d-16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If A+B+C=<img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" class="latex-formula"
seraphim [82]

Answer:

a + b + c = \pi \\  =  > c=  \pi - a - b \\  <  =  >  \tan(c)  =  \tan(\pi - a - b)  =  -\tan(a + b)

Step-by-step explanation:

we have:

\tan(a)  +  \tan(b)  +  \tan(c)  \\  =  \tan(a)  +  \tan(b)  -  \tan(a + b)  \\  =  \tan( a)  +  \tan(b)  -  \frac{ \tan(a) +  \tan(b)  }{1 -  \tan(a)  \tan(b) }  \\  =  \frac{ ( \tan(a) +  \tan(b)  ) \tan(a) \tan(b)  }{ \tan(a) \tan(b)  - 1 } (1)

we also have:

\tan(a)  \tan(b)  \tan(c)  \\  =  -  \tan(a)  \tan(b)  \tan(a + b)  \\  =  \frac{ -(\tan( a  )   + \tan(b) ) \tan(a)  \tan(b) }{1 -  \tan(a)  \tan(b) }  \\  =  \frac{( \tan(a)  +  \tan(b)) \tan(a)   \tan(b) }{ \tan(a) \tan(b)  - 1 } (2)

from (1)(2) => proven

5 0
2 years ago
A line with a slope -2 passes through the point (-1,4). Which equation represents this line in point-slope form?
sesenic [268]

9514 1404 393

Answer:

  y-4 = -2(x+1)

Step-by-step explanation:

The point-slope equation of a line is ...

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

You have m = -2 and (h, k) = (-1, 4). Putting these numbers into the above form gives ...

  y -4 = -2(x +1)

7 0
2 years ago
Solve.<br> sec 315 degrees
densk [106]

Answer:

1.41

Step-by-step explanation:

5 0
2 years ago
Find the value of x in the picture
Hunter-Best [27]

Answer: x=128\°

Step-by-step explanation:

It is important to remember the following:

Angle\ formed\ by\ two\ chords=\frac{1}{2}(Sum\ of\ intercepted\ arcs)

In this case you can observe in the figure that "x" is an Angle formed by two chords, therefore, you can find its value applying the formula.

Therefore, the value of "x" is this:

x=\frac{1}{2}(202\°+54\°)\\\\x=\frac{1}{2}(256\°)\\\\x=128\°

6 0
3 years ago
Other questions:
  • A manager states that his process is really working well. Out of 1,500 parts, 1,477 were produced free of a particular defect an
    13·2 answers
  • What is the value of x?<br> ANSWER ASAP!!
    15·1 answer
  • A sphere has a volume of 7,234.56 units^3. Using 3.14 for pi, find the radius of the sphere. Record your answer on the grid.
    14·1 answer
  • A. The length of a rectangular fenced enclosure is 12 feet more than the width. If Farmer Dan has 100 feet of fencing, write an
    11·1 answer
  • 13) -3x - 4y = 8<br>-4x - 3y=6​
    5·1 answer
  • Solve the system by<br> substitution 5x+3y=8 3x+y=8
    5·2 answers
  • Kerion can make 12 necklaces in 2 hours how long will it take for her to make 10 necklaces
    14·1 answer
  • Help me with the top please
    7·2 answers
  • ⚠️⚠️⚠️HELP HELP HELP IMAGE ATTACHED EXTRA POINTS
    8·1 answer
  • 2r=1/6 find the value of r.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!