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maxonik [38]
2 years ago
10

What is the standard deviation of this data set? 12, 14, 9, 11, 10, 15, 16, 12, 7, 14

Mathematics
1 answer:
Tju [1.3M]2 years ago
4 0

Answer:

The standard deviation is 2.6832815729997

Step-by-step explanation:

SD^2=(12-12)^2+...+(14-12)^2/10

SD^2=72/10

SD^2=7.2

SD=squeare root of 7.2

SD=2.6832815729997

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Point R is located at  (3,2) and point S is located at (8,15) . What are the coordinates of the point that partitions the direct
faltersainse [42]
The coordinates of the point can be solve using the fomula:

x = x1 + r( x2 - x1 )
y = y1 + r( y2 - x1)
where r is the ratio that partitions the segment
x = x1 + r( x2 - x1 )
x = 3 + 1/3( 8 - 3 )
x = 3 + 1/3( 5 )
x = 14/3
y = y1 + r( y2 - x1)
y = 2 + 1/3( 15 - 2)
y = 2 + 1/3( 13 )
y = 19/3
so the coordinate is ( 14/3 , 19/3 )
8 0
2 years ago
Write an equation of a line in slope-intercept form with the given slope and y-intercept.
Ganezh [65]
The equation is, y = 8x-3
5 0
2 years ago
Hari borrowed Rs. 126000 from a money-lender at 15% per annum simple interest,
amid [387]

Answer:

Rs. 112000

Step-by-step explanation:

  • Borrowed money = Rs. 126000
  • Interest rate = 15% PA simple
  • Time = 3 years

<u>Hari is due to pay after 3 years:</u>

  • 126000* (1+ 3*15/100) = 182700

He pays Rs. 70700, remaining money is cleared by giving buffalo.

<u>Cost of buffalo:</u>

  • 182700 - 70700= Rs. 112000

<u>Answer is:</u> Rs. 112000

7 0
2 years ago
Read 2 more answers
Jason jogged 2/3 mile in 1/3 hour. What was his speed in miles per hour?
fenix001 [56]

Answer:

I honestly was having the worst time trying to solve this sorry :(, for real idk if any of these are right

i got 2 answers; 1st: ≈0.5 mph

the 2nd; 2 mph

Step-by-step explanation:

Speed = \frac{Distance}{Time}

2/3 miles = 3520 feet

1/3 hours = 20 minutes

------Make a proportion-----

\frac{3520ft}{20min} = \frac{1 mi=5280 ft}{1hr = 60min}

cross multiply------

3520 * 60 = 211200

5280 * 20 = 105600

Divide \frac{211200}{105600}= 2

---(this is where i got confused cuz 2 doesn't make any sense)--

If you flip them, \frac{105600}{211200}=0.5 which makes more sense

hope i helped :(

7 0
2 years ago
Please answer fast i really need this
frosja888 [35]
We will need like a graph for that
8 0
2 years ago
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