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Feliz [49]
3 years ago
15

What is the probability of drawing a 9 of heart or an ace from a standard deck of cards? A. 7/52 B. 5/52 C. 5/26 D. 8/13 What is

the probability of drawing a queen of heart or an ace of diamonds from a standard deck of cards? A. 5/26 B. 8/13 C. 7/52 D. 2/52 What is the probability of drawing a face card or an ace of diamonds from a standard deck of cards? A. 8/13 B. 7/52 C. 5/26 D. 9/52
Mathematics
1 answer:
Strike441 [17]3 years ago
5 0
A for the first because  there are 4 aces and 1 nine of hearts. that makes it 5 cards of the 52 in a deck
d for the second because there are two cards: the queen of heart and and ace of diamond out of the 52

hope this helped :)

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Step-by-step explanation:

c=5/9(49-32)

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simply use the formula

8 0
3 years ago
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units ass
FrozenT [24]

Answer:

H0 is rejected.There difference in the means for the three assembly methods.

Step-by-step explanation:

Calculating gives the following results.

ANOVA Table

Source        DF                  Sum                Mean            F Statistic      

                                       of Square         Square

Treatments       2               4560               2280             9.865

(between groups)

 

<u>Error            27                  6240                231.111                                   </u>

Total         29                   10,800  

Error SS= SST -SSTR = -10,800-4560=6240    

d.f for SSTr = r-1= 3-1

D.f for SST= n-r= 30-3= 27

Total D.f= d.f for SSTr+D.f for SST= 27+29

MSTR= SSTR/d.f= 4560/2= 2280

MSError= Error SS/ d.f= 6240/27=231.111

F test= MSTR/ MsError= 2280/231.11= 9.865

The P- value < 0.01 which  is less than 0.05 therefore H0 is rejected.

There is sufficient evidence to reject H0.

3 0
3 years ago
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Agata [3.3K]
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Step-by-step explanation:

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One.

Step-by-step explanation:

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4 0
3 years ago
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