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3 years ago

Find the lower quartile of this data set: 593, 588, 540, 434, 420, 398, 390, 375

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

7 0

Answer:

Quartiles Quartiles:

Q1 --> 396

Q2 --> 423.5

Q3 --> 552

Step-by-step explanation:

Mean x¯¯¯ 461.91666666667

Median x˜ 423.5

Mode 420

Range 218

Minimum 375

Maximum 593

Count n 12

Sum 5543

Quartiles Quartiles:

Q1 --> 396

Q2 --> 423.5

Q3 --> 552

Interquartile

Range IQR 156

Outliers none

Sergio [31]3 years ago

5 0

Happy birthday wooooo

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4 years ago

To make concrete it takes 8 parts crushed gravel, 7 parts water and 5 parts cement mix. A worker needs to make 220kg of concrete

Alika [10]

A) 8 + 7 + 5 = 20 parts
b) 220 kg ÷ 20 = 11
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3 years ago

If a is the average (arithmetic mean) of 4x and 7, b is the average of 5x and 6, and c is the average of 3x and 11, what is the

Debora [2.8K]

Answer:

2x+4

Step-by-step explanation:

Given that a is the average (arithmetic mean) of 4x and 7, b is the average of 5x and 6, and c is the average of 3x and 11

By definition of arithmetic mean,

we have $a=\frac{4x+7}{2} \\b=\frac{5x+6}{2} \\c=\frac{3x+11}{2}$

Let us calculate sum of a,b,c in terms of x

a+b+c = $\frac{4x+7+5x+6+3x+11}{2} \\=6x+12$

Average = sum/3 = $\frac{6x+12}{3} =2x+4$

7 0

4 years ago

What is the slope intercept form of the equation y+5= 4(x+8)

hram777 [196]

Answer:

$y=4x+27$

Step-by-step explanation:

we know that

The equation of the line into slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept

we have

$y+5=4(x+8)$ ----> equation of the line into point slope form

Convert to slope intercept form

Isolate the variable y

Distributed left side

$y+5=4x+32$

subtract 5 both sides

$y=4x+32-5\\ y=4x+27$

7 0

3 years ago

4x + 1 = 5, find x assuming x is a whole number

levacccp [35]

Answer:

x=1

Step-by-step explanation:

4x+1=5

4x=5-1

4x=4

x=4/4=1

This happens to be a whole number.

4 0

3 years ago