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Korolek [52]
3 years ago
14

Find the Value of x.

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0
I got 83! hope this helps
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During the summer of 2014, Coldstream Country Club in Cincinnati, Ohio collected data on 443 rounds of golf played from its whit
lys-0071 [83]

Answer:

Step-by-step explanation:

Hello!

You have the data on 443 rounds of golf played on the 12th hole.

The variable of interest is:

X: score of one round of golf played on the 12th hole.

To construct the empirical distribution of the discrete variable you have to organize the data from least to highest and count how many times each score was recorded, establishing the absolute frequency for each value of the variable.

a. Check attachment.

fi= absolute frequency

Fi= accumulated absolute frequencies

hi= relative frequency

Hi= accumulated relative frequency

b.

P(X≤4)

This is the probability of the player scoring "4 or less", so it includes the probability of the player scoring 3 and the player scoring 4, symbolically:

P(X≤4)= P(X=3)+P(X=4)= H(4)= 0.136

c.

The expected score of a discrete variable is:

E(X)= [∑(Xi*fi)]/n= 2343/443= 5.29

d.

To calculate the variance of the variable you have to use the following formula:

V(X)= 1/(n-1)*[∑(Xi²*fi)-(∑(Xi*fi)²]/n)] = (1/442)*[12831-(2343²/443)]

V(X)= 0.993

e.

The standard deviation is the square root of the variance:

√V(X)=√0.993= 0.994

I hope it helps!

4 0
3 years ago
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What is the value of x?
Andrew [12]

Answer:

45??

Step-by-step explanation:

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An art class contains 87 jars of paint. One third of the paint colors is red the remaining two thirds is purple.what is the rati
AlexFokin [52]

9514 1404 393

Answer:

  2 : 1

Step-by-step explanation:

  purple : red = (2/3) : (1/3) = 2 : 1

The ratio of purple paint to red paint is 2 : 1.

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2 years ago
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Which question is equivalent to 30/3+x
8090 [49]

Answer:

X+10 I think

Step-by-step explanation:

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Find the equation of the axis of symmetry of the parabola.
Stolb23 [73]

Answer:

Just substitute 0 instead of f (x),therefore

x { }^{2}  - 12x + 36 \\ x = 6

The answer option is C

7 0
3 years ago
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