Nuj
Nuj Nuj
  • 25-06-2020
  • Mathematics
contestada

I will mark brainliest please help me​

I will mark brainliest please help me class=

Respuesta :

Stephen46
Stephen46 Stephen46
  • 25-06-2020

Answer:

Formula for mean in grouped data

= Zfx/ Zf

f = sum of the number of mice

= 35

Frequency = 39 + x

Mean = 7

Fx = 20 + 78 + 112 + 8x + 54

= 264 + 8x

7 = 264 + 8x/ 39 + x

7(39+x) = 264 + 8x

After solving you will get

x = 9

Hope this helps.

Answer Link

Otras preguntas

in ancient China, many aspects of life were ruled by the___ of Confucius.
what caused people of many different religious groups to settle in the middle colonies
in ancient China, many aspects of life were ruled by the___ of Confucius.
What is a medial moraine, and how is it formed?
In which one of the following sentences could you best use a semicolon? A If you ask me Jerry is a tennis whiz. B When she is worried Lucille eats a lot. C Jerr
What do ancient India and ancient Egypt have in common?
jessie sorted the coins in her bank. she made 7 stacks of 6 dimes and 8 stacks of 5 nickels. she then found 1 dime and 1 nickel. how many dimes and nickels does
Why is gravity an example of scientific law?
Why is gravity an example of scientific law?
Allison has 6 blue pencils and 10 yellow pencils.sadie has 24 pencils that are either blue or yellow.the ratio of blue pencils to yellow pencils is the same fo