All categories

3 years ago

The data set below shows the number of homework assignments required in math classes for a month:

Mathematics

2 answers:

Kazeer [188]3 years ago

8 0

The letter answer is (B)

Usimov [2.4K]3 years ago

5 0

Answer:

There is one outlier that indicates an unusually small number of assignments required in that class.

Step-by-step explanation:

Arranging the data is ascending order, we get:

4, 15, 15, 16, 17, 18, 20, 21, 22, 23, 23, 23, 24, 25

Lets divide the data in 4 equal parts to know the IQ ranges.

(4, 15, 15), 16, (17, 18, 20), (21, 22, 23), 23, (23, 24, 25)`

We can see that first interquartile range Q1 is 16

The third interquartile range Q3 is 23.

The IQR is $23-16=7$

Lets check the interval [Q1-1.5(IQR),Q3+1.5(IQR)],

If any data lies in this interval, it will have no outliers.

[ $[16-1.5(7),23+1.5(7)]$ = [5.5,33.5]

So, we can see that all the data except 4 lie in the interval [5.5,33.5].

Therefore, we can say that -

B - There is one outlier that indicates an unusually small number of assignments required in that class.

You might be interested in

-3x - 3y = 3, -5x + y =13<br> System of Equations

Nataliya [291]

Answer:

( $\frac{-7}{3}$ , $\frac{4}{3}$ )

Step-by-step explanation:

Hi there!

We are given the following system of equations:

-3x-3y=3

-5x+y=13

and we need to find the solution (the point at which the 2 lines intersect)

let's solve this by substitution, where we will set one variable equal to an expression containing the other variable, and then substitute that expression into the other equation to solve for the variable that the expression from earlier contains, and then use the value of the solved variable to find the value of the first variable

in the second equation, add 5x to both sides to isolate y by itself

y=5x+13

now substitute 5x+13 as y in -3x-3y=3

-3x-3(5x+13)=3

do the distributive property

-3x-15x-39=3

combine like terms

-18x-39=3

add 39 to both sides

-18x=42

divide both sides by -18

x= $\frac{-7}{3}$

now we need to find y

remember: y=5x+13

substitute $\frac{-7}{3}$ as x in y=5x+13

y=5( $\frac{-7}{3}$ )+13

multiply

y= $\frac{-35}{3}$ +13

add

y= $\frac{4}{3}$

So the answer is x= $\frac{-7}{3}$ , y= $\frac{4}{3}$ . As a point, it's ( $\frac{-7}{3}$ , $\frac{4}{3}$ )

Hope this helps! :)

4 0

3 years ago

I need help on my math please

Dovator [93]

In a 2-way frequency table, you take the row entry and divide it by its row total to get a decimal.
For your example:
It starts out like this:
sunny snowy
Male: 17 11
Female: 15 16

Add the rows up.
sunny snowy     total
Male: 17 11 28
Female: 15 16 31

Then divide the number the by the total:
sunny     snowy     total
Male: 17/28 11/28 28
Female: 15/31    16/31 31

Yours says to round to the 1000th place, so it ends up like:
sunny snowy
Male: .607 .393
Female: .484 .515

Hope that helps!!

7 0

3 years ago

What is the y-intercept of the line with the equation 4x + 2y=12

malfutka [58]

The y-intercept (0,6) all you have to do when the formula is written like that just divide the opposite side by the number next to y.

3 0

3 years ago

Read 2 more answers

PLEASE HURRY! WILL GIVE 5 STARS! AND THANKS!

solong [7]

Answer:

7/24