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n200080 [17]
3 years ago
12

Identify the area famous for its 29 active volcanoes

Mathematics
1 answer:
satela [25.4K]3 years ago
8 0
Kamchatka Peninsula was known for having 29 active volcanoes and it lies at the eastern edge of the russian far east. Kamchatka Peninsula lies between the Sea of Okhotsk to the west and Pacific Ocean to the east and it was a1,250-kilometer-long penisula in the Russian Far East. So, the answer in this question is Kamchatka Peninsula.
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The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week.
Zigmanuir [339]

Answer:

Hence,

a)

Test statistic X^{2} = 9.269.  

p value = 0.148

b)

Sunday=  15.23%, Monday= 12.62%, Tuesday= 13.10%, Wednesday=11.67%,

Thursday= 13.10%, Friday= 16.19%, Saturday= 18.09%.

Step-by-step explanation:

a)

                    relative observed    Expected       Chi square

Category   frequency(p)      O_{i}    Ei=total*p    (O-E)^{2} R^{2}_{i} =(O_{i} -E_{i} )^{2} /E_{i}

     1           0.142857143      64.0         60.00    16.00          0.267

    2           0.142857143      53.0       60.00     49.00         0.817

    3           0.142857143      55.0         60.00     25.00        0.417

    4           0.142857143      49.0       60.00     121.00        2.017

    5           0.142857143      55.0         60.00     25.00        0.417

    6           0.142857143      68.0         60.00     64.00        1.067

    7           0.142857143      76.0         60.00    256.00        4.267

  Total         1.000      420        420             556       9.269

Test statistic X^{2} = 9.269.  

p value = 0.148 from excel: chidist(9.269,6)  

b)

Percentage %= Frequency of traffic occur on category x 100 / Total number of frequency given.

Category          Percentage%

Sunday                   15.23%

Monday                    12.62%

Tuesday                   13.10%

Wednesday           11.67%

Thursday           13.10%

Friday                   16.19%

Saturday                   18.09%

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Step-by-step explanation:

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