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laila [671]
3 years ago
11

Find the mean of the data. give your answer in decimal form

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0
Mean = (1+1+2+3+3+3+4+5)/8 = 22/8 = 2.75

answer
mean = 2.75
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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
Deductions this Week: Federal Tax $52.02, FICA $33.02, State $5.33. Find the annual Federal Tax deduction
Leya [2.2K]

Answer:

The annual federal tax deduction is $2705.04 .

Step-by-step explanation:

As given deduction in a week

Federal Tax $52.02

As there are 52 weeks in a week.

Thus

Annual Federal Tax deduction = Total number of weeks in a year ×  Federal Tax  deduction in week

                                                  = 52 × 52.02

                                                  = $ 2705.04

Therefore the annual federal tax deduction is $2705.04 .

                                       


3 0
2 years ago
Read 2 more answers
Which gives the correct values for points A, B, C, and D?<br>​
insens350 [35]

Answer:

The thing that gives corrects values for point A,B,C and D is....

Add a pic

Step-by-step explanation:

5 0
2 years ago
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Find the ratio of m to n. 9n=3m
Andre45 [30]
3:1



,,,,,,,,,,,,,,hope this helps
3 0
3 years ago
Sarah was left with 35 pies after her bake sale. Her neighbor tookſ of the remaining pies. Sarah took home the rest. How many pi
aksik [14]

Answer:

Sarah took home 30 pies

Step-by-step explanation:

Given

Total remaining pieces of pies after bake sale left with Sarah = 35

Her neighbor took 1/7 of the remaining pies

Her neighbor took 1/7 * 35 = 5 pies

Hence, pieces of pies left with Sarah = 35 - 5 = 30

8 0
3 years ago
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