The histogram shows the birth weights of 1000 mice.


Frequency density


18


20


6 8 10 12 14 16


Birth weights (grams)


Work out the number of mice with birth weights below 10 g.

Respuesta :

Answer:

The answer is "80 mice"

Step-by-step explanation:

In the given question, the attachment is missing, that is attached with the answer.

Formula:

[tex]\ areas \ of \ rectangle \ = \ base \times height[/tex]

When range in between 6-10 So,

base =4

height= 3

area = 4×3 =12  

When range in between 10-12 So,

base =2

height= 8

area = 2 × 8 =16

When range in between 12-14 So,

base =2

height= 11

area = 2 × 11 = 22

When range in between 14-15 So,

base =1

height= 23

area = 1 × 23 =23

When range in between 15-16 So,

base =1

height= 19

area = 1 × 19 =19

When range in between 16-20 So,

base =4

height= 2

area = 4 × 2 =8

Formula:

weight which below from 10 g  =  [tex]\frac{ \ rectangle \ area \ from 6-10}{ \ all \ rectangle \ areas} \times 1000[/tex]

                                                   [tex]= \frac{ 8 } { 12 + 16 + 22 + 23 + 19 + 8 } * 1000 \\\\= \frac {8}{100} \times 1000\\\\= 8\times 10\\\\= 80[/tex]

weight = 80 mice

Ver imagen codiepienagoya

Answer:

120

Step-by-step explanation:

Each square=x

6g-10g=4g       10g-12g=2g      12-14g=2g

15g-14g=1g       16g-15g=1g       20g-16g=4g

(4x3)+(2x8)+(2x11)+(1x23)+(1x19)+(4x20

12+16+22+23+19+8=1000

x=1000

1000÷100=10

1 box = 10

4×30=120

(I got this answer through help of others, it is not truly mine)