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Shkiper50 [21]
3 years ago
5

Please I need help. Help me please​

Mathematics
1 answer:
vitfil [10]3 years ago
4 0

Answer:

Hello! answer:

A: 5

B: 15

C: 61

D: 24

E: 37

F: 10

I believe all of these are correct. when solving remember you do a^2+b^2=c^2

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Step-by-step explanation:

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A book claims that more hockey players are born in January through March than in October through December. The following data sh
denis-greek [22]

Complete question :

Birth Month Frequency

January-March 67

April-June 56

July-September 30

October-December 37

Answer:

Yes, There is significant evidence to conclude that hockey​ players' birthdates are not uniformly distributed throughout the​ year.

Step-by-step explanation:

Observed value, O

Mean value, E

The test statistic :

χ² = (O - E)² / E

E = Σx / n = (67+56+30+37)/4 = 47.5

χ² = ((67-47.5)^2 /47.5) + ((56-47.5)^2 /47.5) + ((30-47.5)^2/47.5) + ((37-47.5)^2/47.5) = 18.295

Degree of freedom = (Number of categories - 1) = 4 - 1 = 3

Using the Pvalue from Chisquare calculator :

χ² (18.295 ; df = 3) = 0.00038

Since the obtained Pvalue is so small ;

P < α ; We reject H0 and conclude that there is significant evidence to suggest that hockey​ players' birthdates are not uniformly distributed throughout the​ year.

5 0
2 years ago
The diameter of a circle is 9 ft. Find the circumference and round it to the nearest tenth.
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Answer:

9*3.14=28.26

Step-by-step explanation:

Hope this Helps!

6 0
1 year ago
Read 2 more answers
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