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d1i1m1o1n [39]
2 years ago
8

How do you solve this? Please help me (i will give you 14 points)

Mathematics
1 answer:
azamat2 years ago
7 0

Answer:

X can be 2,3,4,5,6,7,8

Step-by-step explanation:

X is greater than or equal  to 2  and less than or equal to 8

It can only be integers

X can be 2,3,4,5,6,7,8

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A group of kids just finished trick-or-treating. The number of pieces of candy collected by each of the 5 kids
NemiM [27]

Answer:

s = \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

s =\sqrt{\frac{(31-35)^2 +(33-35)^2 +(36-35)^2 +(41-35)^2 +(34-35)^2}{5-1}} =3.808

And the answer for this case would be :

s= 3.81 after round the value

Step-by-step explanation:

We have the following data set given:

31, 33, 36, 41, 34

If we want to find the standard deviation we need to find first the sample mean with this formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And replacing we got:

\bar X = \frac{31+33+36+41+34}{5}= \frac{175}{5}= 35

Now we can find the sampel deviation with this formula:

s = \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

And replacing we got:

s =\sqrt{\frac{(31-35)^2 +(33-35)^2 +(36-35)^2 +(41-35)^2 +(34-35)^2}{5-1}} =3.808

And the answer for this case would be :

s= 3.81 after round the value

6 0
2 years ago
Sin pi/4 sin pi/6= 1/2(_____ pi/12-cos 5pi/12)
jonny [76]

Answer: sin pi/4 sin pi/6 = 1/2(cos pi/12 - cos 5pi/12)

correct on apex

7 0
1 year ago
Read 2 more answers
While walking by a classroom, Linda sees two perfect squares written on a blackboard. She notices that their difference is her f
nydimaria [60]

Answer:

15^2

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Step-by-step explanation:

3 0
1 year ago
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A trail runner gets a new map of her favorite mountain. • Her old map has a scale of 1 cm to 100 m. • Her new map has a scale of
KIM [24]

Answer:

The trail on her new map is 8 cm

Step-by-step explanation:

Here, we are interested in knowing the the length of the trail on the new map.

The scale on her old map is 1 cm represents 100 m

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Now, running a trail of 40 cm on her old map, we need to get the actual distance.

The actual distance will be 40 * 100 = 4,000 m

Now, we shall convert this to the new map scale

We simply convert this to cm in the new map scale by dividing the 4,000 m by 500 m

That would be 4,000/500 = 8 cm

So the trail on her new map is 8 cm

3 0
1 year ago
Fill in the blank. a​ _____________ is used to test the hypothesis that an observed frequency distribution fits​ (or conforms​ t
dolphi86 [110]
The correct answer for the completion exercise shown above is: "Goodness of fit test". 

 Therefore, the complete sentence is shown below: "A goodness of fit test is used to test the hypothesis that an observed frequency distribution fits​ (or conforms​ to) some claimed distribution".

 The goodness of fit test, which is also known as "GOF" is usefull to know how well the selected distribution fits to the data. The result are usually presented in tables called "Interactive tables".
4 0
1 year ago
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