3 years ago

Find the interquartile range using the following data 4 ,4 , 4 ,4 ,5, 6 ,7 , 7 ,7

Mathematics

1 answer:

katen-ka-za [31]3 years ago

7 0

Answer:

Step-by-step explanation:

Ascending order:

4 ,4 , 4 ,4 ,5, 6 ,7 , 7 ,7

9 data: split in

4 ,4 , 4 ,4 | 5 | 6 ,7 , 7 ,7

4 ,4 | 4 ,4 | 5 | 6 ,7 | 7 ,7

(7+7)/2-(4+4)/2

=7-4

You might be interested in

Simplify the following expression: -6x + 4(-x - 3)

ss7ja [257]

Answer:

$- 10x - 12$

Step-by-step explanation:

$- 6x + 4( - x - 3) \\ - 6x - 4x - 12 \\ - 10x - 12 \\ = - 2(5x + 6)$

3 0

3 years ago

Solve for X 8^3x-10 =4^6x-27 Thanks in advance!

dlinn [17]

$8^{3x-10}=4^{6x-27}\\\\(2^3)^{3x-10}=(2^2)^{6x-27}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{3(3x-10)}=2^{2(6x-27)}\qquad\text{use distributive property}\\\\2^{(3)(3x)+(3)(-10)}=2^{(2)(6x)+(2)(-27)}\\\\2^{9x-30}=2^{12x-54}\iff9x-30=12x-54\qquad\text{add 30 to both sides}\\\\9x=12x-24\qquad\text{subtract 12x from both sides}\\\\-3x=-24\qquad\text{divide both sides by (-3)}\\\\\boxed{x=8}$

6 0

4 years ago

Carlos has received a 9% salary increase. If he now earns $654 per week, what was his salary before the increase.?

babunello [35]

So let's say he was earring x before his raise. That means that:
x times 1.09 = 654 (1.09 represents 100% (this is the 1.0) of his original salary plus 9% (this is the .09) his raise.
So,
1.09x = 654; now divide both sides by 1.09 to isolate and solve for x, and you get x = $600.

6 0

3 years ago

What is the probability of getting 3 queens in a 5-card hand using a standard deck of cards?

Oxana [17]

Answer:

1.2%

Step-by-step explanation:

I did math

4 0

3 years ago

Solve−4 1/3÷−2 3/5 a 1 2/3 b 1 4/5 c 2 1/5 d 2 3/5

grin007 [14]

A 1 2/3
-4 1/3 / -2 3/5=1.6666=1 2/3

5 0

3 years ago