All categories

4 years ago

PLEASE HELP BRAINIEST ANSWER IS WORTH 20 POINTS

Mathematics

1 answer:

svetlana [45]4 years ago

5 0

Answer:

B. Final Exams.

Step-by-step explanation:

The IQR is the difference between the lower and upper quartiles of the data and is a measure of the spread of the data.

Mid Term Exam:

First find the Median

This is (95+92)/2 = 93.5.

The Lower quartile is the median of the bottom 5 values = 88.

The upper quartile is the median of the top 5 values = 100

So the IQR = 100 - 88 = 12.

Final Exam.

We find the IQR of the Final exam data in a similar way:

It comes to 93 - 78 = 15.

You might be interested in

Y= 2x x+y=12 What is this answer?

morpeh [17]

Answer:

if Y = 2x so place 2x to the why and for it can = 12 well put 10x

6 0

4 years ago

The dot plot represents a sampling of ACT scores:

Troyanec [42]

The data from a dot plot can be analyzed to find the five number summary, from which a box plot can be constructed

The correct option for the details of the box plot that represents the dot plot data is;

Box plot titled ACT Score with a minimum of 18, quartile 1 of 21, median of 22, quartile 3 of 23, and maximum of 25

The process of deriving the five number summary of the box plot above is as follows;

Known:

The data from the dot plot can be expressed in increasing order for analysis of a box plot as follows;

18, 19, 19, 19, 21, 21, 21, 21, 22, 22, 22,22, 23, 23, 23, 24, 24, 25

The number of data points in the statistics, n = 18

Unknown:

The five number summary

Method:

Finding the five number summary as follows;

The minimum value = 18

The maximum value = 25

The first quartile, inclusive of the median Q₁ = The middle number of the lower half {18, 19, 19, 19, 21, 21, 21, 21, 22} = The (9 + 1)/2 th term

∴ Quartile 1 = Q₁ = 5th term = 21

The second quartile, Q₂ = The median (the middle number) = (22 + 22)/2 = 22 = Quartile 2

Quartile 2 = 22

The third quartile = The middle number of the upper half {22, 22,22, 23, 23, 23, 24, 24, 25} = Quartile 3 = 23

Quartile 3 = 23

Combining the above 5 number summary, the correct option for the box plot representing the dot plot data, is therefore;

Box plot titled ACT Score with a minimum of 18, quartile 1 of 21, median of 22, quartile 3 of 23, and maximum of 25

Learn more about box and whiskers, and dot plots here;

brainly.com/question/4002977

7 0

3 years ago

Please, I need assistance, thank you!

dsp73

Answer:

a. $x=45$

b. The lines $AD$ and $BC$ would be parallel.

Step-by-step explanation:

a) By definition,the sum of the interior angles of a quadrilateral is 360 degrees.

Notice that the quadrilateral has an angle of 90 degrees. Then, you can write the following equation:

$x+2x+3x+90=360$

Solving for "x", you get:

$6x=360-90\\\\x=\frac{270}{6}\\\\x=45$

b) Knowing the value of "x", you know the measure of the angles of the quadrilateral:

$\angle A=2x=2(45)=90\°\\\\\angle B=90\°\\\\\angle C=x=45\°\\\\\angle D=3x=3(45)=135\°$

Since:

$\angle A$ ≅ $\angle B$

When $ABCD$ is drawn to scale, the lines $AD$ and $BC$ would be parallel.

6 0

3 years ago

Mr Satyal borrowed Rs 50000 and after ane year she returned the loan by paying 60000. What is the intrest paid and what is the r

Hatshy [7]

The interest paid is Rs 10000

The rate of interest is 20%

Step-by-step explanation:

Step 1 :

Amount borrowed by Mr. Satyal = Rs 50000

Amount repaid = Rs 60000

Interest is charged on the principal amount and the amount repaid will be the sum of the interest paid plus the principal amount

Hence the interest paid is 60000 - 50000 = Rs 10000

Step 2:

The rate of interest is calculated as follows :

Divide the interest calculated by the principal amount and is expressed as percentage.

Hence the interest rate = $\frac{10000}{50000}$ × 100 = 20%

Step 3 :

The interest paid is Rs 10000

The interest rate is 20%

5 0

4 years ago

Can someone help me out here please?

S_A_V [24]

Step-by-step explanation:

Area of circle:

A=π*(r^2)=π*(16^2)=256π ft^2

Area of the figure:

A=(3*256π)/4=192π=603.185=603.18 ft^2

5 0

3 years ago