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3 years ago

Help help help!!! I don't know how to do it!!!

Mathematics

2 answers:

s344n2d4d5 [400]3 years ago

5 0

Answer:

1,3

Step-by-step explanation: i belive so

Tcecarenko [31]3 years ago

4 0

Answer:

1,3. I think hope this helps

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How will adding the value 75 affect the mean and median of the data set 1, 5, 7, 9 , 9, 10? * A.The median increases less than t

Zinaida [17]

{1,5,7, 9,9,10} is the original set. The median is the middle most value which is between 7 and 9 (those two values are tied for the middle most values). Add them up and divide by 2:
(7+9)/2 = 16/2 = 8

The median of the original set is 8

The mean of the original set is approximately 6.83
Because we add up the values and divide by 6 (there are six data values)
1+5+7+9+9+10 = 41
41/6 = 6.83
----------------------------------

Now let's add 75 to the list of values. The list is now
{1, 5, 7, 9, 9, 10, 75}
The median becomes 9 which is shown in bold below
{1, 5, 7, 9, 9, 10, 75}
There are 3 values to the left of the median. There are 3 values to the right of the median.

The new mean is (1+5+7+9+9+10+75)/7 = 16.57 approximately

----------------------------------

Summary so far:
Old Median = 8
New Median = 9

Old Mean = 6.83
New Mean = 16.57

The medians are exact. The means are approximate to two decimal places.

So we can see that the mean increases dramatically compared to the median. This is why with large outliers, the median is always a better measure of center. The mean is always pulled toward the outlier. In the second data set, the distribution is skewed to the right (thanks to the outlier on the right pulling on the tail).

Answer: Choice A) The median increases less than the mean increases.

6 0

4 years ago

Prove the two triangles are similar <br> use photo for details

mixas84 [53]

Answer:

the sides are congruent.

7 0

3 years ago

How can you use partial quotients to find 684 divided by 57?

shusha [124]

Answer: 684 divided by 57=12

Step-by-step explanation:(with reference to the figure)

To find 684 divided by 57 by partial quotients .

Here dividend= 684 and divisor =57

Step 1: Write easy factors of divisor that is nearest to the dividend as follows

57×2=114

57×3=171

57×5=285

57×10=570(nearest easy factor)

Step 2: Now subtract 570 from 684 ,we get 114 then subtract 114=57×2 from it we get 0.

Step 3: Adding the factors we have used in step 1 and 2 ,it will give required quotient=10+2=12

i.e. 684=57(10)+57(2)

7 0

3 years ago

Write 5.19 x 10^2 in standard form.

SVEN [57.7K]

Answer:

519

hope this helped you

8 0

3 years ago

Do the ratios 13 6 and 2 1 form a proportion?

Papessa [141]

Answer:

No. The two ratios do NOT form a proportion.

Step-by-step explanation:

Cross multiply.

13/6 : 2/1

13(1) : 6(2)

13 ≠ 12

7 0

3 years ago