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Ratling [72]
2 years ago
15

Dan rolls 2 fair dice and adds the results from each.

Mathematics
1 answer:
cricket20 [7]2 years ago
3 0

Answer:

2/36

Step-by-step explanation:

He will have a probability of getting a total of 3 at 5.56% out of 100%.

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A rectangle has a perimeter of 30 and a length of 10. Find the width.
bonufazy [111]

Answer:

5

Step-by-step explanation:

8 0
2 years ago
Jordan earned $200 this month delivering newspapers. His mom said he must put 20% into his savings account. He wants to buy head
Dennis_Churaev [7]

Answer:

Yes, his calculation is reasonable. He will have about $16.67 left.

Step-by-step explanation:

200 - (200 * .2) = $160 <em>Subtract money for savings</em>

99.95 + (99.95 * .07) + (17*2) + (17 * .07) + (17 * .07) = $143.33 <em>Add taxes</em>

160 - 143.33 = $16.67 <em>Subtract money for purchases from money left after savings</em>

6 0
3 years ago
No link need right answer
SCORPION-xisa [38]

Answer:

Step-by-step explanation:

The ans is 13 to 7

4 0
3 years ago
Read 2 more answers
The CEO of a large electric utility claims that more than 75 percent of his customers are very satisfied with the service they r
vichka [17]

Answer:

z=\frac{0.77-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}=0.462  

Now we can find the p value using the alternative hypothesis with this probability:

p_v =P(z>0.462)=0.322  

Since the p value is large enough, we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%

Step-by-step explanation:

Information provided

n=100 represent the random sample selected

\hat p=0.77 estimated proportion of students that are satisfied

is the value that we want to test

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to verify if more than 75 percent of his customers are very satisfied with the service they receive, then the system of hypothesis is.:  

Null hypothesis:p\leq 0.75  

Alternative hypothesis:p > 0.75  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.77-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}=0.462  

Now we can find the p value using the alternative hypothesis with this probability:

p_v =P(z>0.462)=0.322  

Since the p value is large enough we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%

4 0
3 years ago
I NEED HELP THANK YOU
Degger [83]

Answer: Ima try to get all of my family to sub !!!!!!!!!!!!!!!!

Step-by-step explanation:

6 0
2 years ago
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