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
Anvisha [2.4K]
4 years ago
7

The scores of the athletes are 32,45,33,22,50,48. Find the variance.

Mathematics
1 answer:
Grace [21]4 years ago
6 0

Answer:

Step-by-step explanation:

First, find the mean ; (32+45+33+22+50+48) / 6 = 230/6

Mean = 38.33

Variance =\frac{SUM(X-meanX)^{2} }{n-1}

n = sample size

Variance = \frac{(32-38.33)^{2} +(45-38.33)^{2}+(33-38.33)^{2} +(22-38.33)^{2}+(50-38.33)^{2}+(48-38.33)^{2} }{5}

Variance = \frac{(44.4889 +40.0689 +28.4089 + 266.6689 +136.1889 +93.5089)}{5}

= \frac{609.3334}{5}

= 121.8667

Therefore, variance = 121.87

You might be interested in
Sarah decides to take her six year old son to the cirous. The price for the child's ticket is 4.75 dollars less than the price f
kumpel [21]
The equation would be
x=y-4.75
5 0
3 years ago
Does it make sense to use simple or compound interest for long term investing
Anvisha [2.4K]

Answer:

Sometimes it make sense.

3 0
3 years ago
PLEASE HELP ASAP!!!!!!Ms. Banerjee bought a car for $22,500. The amount she paid for her new car was twice the amount she paid f
ZanzabumX [31]

Answer:

22,500 =2p

Step-by-step explanation:

Because the price of the new car is the price of the old car times 2.

22,500 =2p

First you get P alone. P is being multiplied by 2 so you divide it by 2 so it cancels out.

11250 = p  

When you do something to one side of the equation you do the same to the other side so they are still equal to each other.

3 0
4 years ago
Read 2 more answers
At Joe's Cafe one cup of coffee and 3 donuts cost $3.70 and two cups of coffee and two donuts cost $3.80 what is the cost of one
Trava [24]
$3.50 I believe because the cost of ONE cup of coffee and 3 donuts is $3.70. And 2 cups and 2 donuts are 10 cents more. So ONE cup and ONE donut are $3.50 I beleve

8 0
4 years ago
Read 2 more answers
A 6 inch personal pizza has 620 calories, with 240 of those from fat. A 12 inch pizza is cut into 8 slices. Estimate the number
kolbaska11 [484]

9514 1404 393

Answer:

  310 calories (120 from fat)

Step-by-step explanation:

A 12-inch pizza has double the diameter of the 6-inch pizza, so will have 2² = 4 times the area. 1/8 of that pizza will have 4/8 = 1/2 the area of the personal pizza. If calories are proportional to the area, then the slice will have ...

  (1/2)(620 calories) = 310 calories . . . in 1 slice of 12-in pizza

4 0
3 years ago
Other questions:
  • A cylinder-shaped container has a radius of 25 centimeters and a height of 100 centimeters. A glass sphere with a radius of 10 c
    11·1 answer
  • What do race car drivers like to do
    8·1 answer
  • A number divided by 8 is 6<br>​
    8·2 answers
  • Please need help please ksjdjdnbdbfhfhfhfjfjfjfjfjfhjfjcjf
    10·1 answer
  • stan needs a mime.Mime a is offering his services for an intial 75 in addition to 25 per hour.Mime b is offering her services fo
    15·1 answer
  • Solve the following equation algebraically:
    10·1 answer
  • Help ight now 88 POINTS!
    11·1 answer
  • Use a special-product rule to factor the perfect-square trinomial.<br> 81y^2+ 126y + 49
    13·1 answer
  • The points H, I, J and K all lie on the same line segment, in that order, such that the
    11·1 answer
  • Graph the image of AABC after a translation 6 units right and 7 units down.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!