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Debora [2.8K]
2 years ago
7

Question 1

Mathematics
2 answers:
Elza [17]2 years ago
5 0

Answer:

question 1:

3/11

question 2:

-  7/11

Step-by-step explanation:

in

AnnyKZ [126]2 years ago
3 0

Answer:

1. x=17

2. x=19

3. x=3

4. x=4

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Solve the equations using addition or subtraction.<br> 5.5=-2+d
tia_tia [17]

Answer: d=7.5

Step-by-step explanation: 5.5=−2+d                                                                     d−2+2=5.5+2                                                                                                             d=7.5                  

3 0
2 years ago
Suppose a random sample of 50 college students are asked to measure the length of their right foot in centimeters. A 95% confide
hichkok12 [17]

Answer:

A  99% confidence interval  will be wider than a 95% confidence interval

Step-by-step explanation:

From the question we are told that

  The  95% confidence interval for for the mean foot length for students at the college is found to be 21.709 to 25.091 cm

Generally the width of a confidence interval is dependent on the margin of error.

Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }

From the above equation we see that

          E \ \  \alpha \ \   Z_{\frac{\alpha }{2} }

Here  Z_{\frac{\alpha }{2} }  is the critical value of the half of the level of significance and this value  increase as the confidence level increase

Now if a  99% confidence level is  used , it then means that the value of  

 Z_{\frac{\alpha }{2} }  will increase, this in turn will increase  the margin of error and in turn this will increase the width of the confidence interval

Hence a 99% confidence interval  will be wider than a 95% confidence interval

5 0
3 years ago
32 POINTS
Nimfa-mama [501]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
the basketball team is going to madison square garden to see a knicks game. there are 39 children on the team. they can fit 9 ch
juin [17]
5 would be the answer
4 0
3 years ago
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4. Eric has 54 yards of fencing to use for a flowerbed. Some possible measurements are
diamong [38]

Answer:

the last one(26 by 22) not sure whether its D or E but yah

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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