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Nana76 [90]
3 years ago
7

Database A contains 40 data itemsand is made up with an equal number of the values of 0 and 100 and has a mean of 50. Database B

also has 40 entries made up equally of the values 49 and51 and also has a mean of 50. Which database will have the smaller value for its standard deviation?
Mathematics
1 answer:
chubhunter [2.5K]3 years ago
4 0

Step-by-step explanation:

nwnww jenene ejejnenekeejejnen n you জদ hd

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Which percentage of weight was lost if a patient weighed 102 kg and is currently 96 kg?
galina1969 [7]

Answer:

Step-by-step explanation:

you have to make a box like this:

║ ---------- ║------------ ║     label one side percent and the other amount

║   x%     ║    96 kg  ║

║ _    _   _║_____ _║   Now if the patient originally weighed 102 kg which

║100%    ║    120 kg ║    is 100% place the numbers in the bottom box.

║ _  _  _  ║ _   _   _ ║     and if the patient currently weighs 96 kg then let

 Percent     Amount       percentage of the weight lost be x. Now cross multiply.  You should get 100*96=120*x. Simplify that to get 9600=120x, now divide by 120 on both sides and you get 80 so x= 80. But the problem isn't done yet. Now you have to subtract 80% from 100% to find the weight lost, because 80% is the percentage of the current weight. after you have subtracted you get 20

20% of the original weight was lost.

4 0
3 years ago
What must be added to 3x^3+x^2-22x+9 so that the result is exactly divisible by 3x^2+7x-6.​
Alecsey [184]

Answer:

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
in a year-long music course, you are required to attend 12 concerts. last season, the lengths of the concerts were 92, 101, 98,
coldgirl [10]
In order to choose the boxplot , you can follow this step :

- Determine the start point and the end point of the boxplot, 
You can do this by finding the smallest and the highest number. In this case, the start point will be : 65 , The end point will  be 119
- the next is found the box that cover other numbers, in this case, found the box that cover 90 to 116

And then pretty much it, hope this helps
4 0
4 years ago
If 2x2+13x-7=0 then x could be equal to which of the following
ddd [48]

Answer:

x = - 7, x = \frac{1}{2}

Step-by-step explanation:

Given

2x² + 13x - 7 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × - 7 = - 14 and sum = + 13

The factors are + 14 and - 1

Use these factors to split the x- term

2x² + 14x - x - 7 = 0 ( factor the first/second and third/fourth terms )

2x(x + 7) - 1(x + 7) = 0 ← factor out (x + 7) from each term

(x + 7)(2x - 1) = 0

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

2x - 1 = 0 ⇒ 2x = 1 ⇒ x = \frac{1}{2}

7 0
3 years ago
Rewrite this from the least to the greatest: 6.84, 6.804, 6.884, 6.484, 6.8​
tia_tia [17]

6.484 < 6.8 < 6.804 < 6.84 < 6.884

4 0
3 years ago
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