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torisob [31]
3 years ago
9

100 POINTS PLEASE ANSWER FULLY!!

Mathematics
2 answers:
kodGreya [7K]3 years ago
7 0
Answer: 15
explanation:
Kruka [31]3 years ago
6 0

Answer:

15

Step-by-step explanation:

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erastovalidia [21]

Answer:

Step-by-step explanation:

8 0
3 years ago
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Find the mean, median and mode from the chart below ​
BlackZzzverrR [31]

Answer:

1. mean=1.5, median=1.7, mode is 1.8

2. mean=102,median=134, mode=no mode

3. mean=1885,median=2300, mode=2300

Step-by-step explanation:

6 0
3 years ago
What is the scale factor of ABC to A DEF?
vampirchik [111]

Answer:

6

Step-by-step explanation:

All sides of triangle EFD have x6 of BAC.

E.g.: BA = 2. ED = 2 x 6 = 12

8 0
3 years ago
A Packaging Company produces boxes out of cardboard and has a specified weight of 16 oz. A random sample of 36 boxes yielded a s
user100 [1]

Answer:

The margin of error is of 0.73 oz.

The 99% confidence interval for the true mean weight of the boxes is between 14.57 oz and 16.03 oz. This means that we are 99% sure that the true mean weight of all boxed produced by the Packaging Company is between these two values, and that the specified weight is in this interval.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

That is z with a pvalue of 1 - 0.005 = 0.995, so Z = 2.575.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 2.575\frac{1.7}{\sqrt{36}} = 0.73

The margin of error is of 0.73 oz.

The lower end of the interval is the sample mean subtracted by M. So it is 15.3 - 0.73 = 14.57 oz.

The upper end of the interval is the sample mean added to M. So it is 15.3 + 0.73 = 16.03 oz.

The 99% confidence interval for the true mean weight of the boxes is between 14.57 oz and 16.03 oz. This means that we are 99% sure that the true mean weight of all boxed produced by the Packaging Company is between these two values, and that the specified weight is in this interval.

4 0
2 years ago
Joe runs each lap in 5 minutes. He will run at least 12 laps today. What are the possible numbers of minutes he will run today?
worty [1.4K]

Answer:

at least 60 min (1 hour)

Step-by-step explanation:

we know that a lap takes 5 min.

and we know he will run At least 12 laps

that means that the least number of min.he can run is 5x12=60

So, 60min is the answer

8 0
3 years ago
Read 2 more answers
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