This is how your graph should look like
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:
6:54?
Step-by-step explanation:
Im really sorry if it's wrong but I'm pretty sure thats the answer since its a ratio
(94 * 8.9) - 14
836.6 - 14
822.6 = answer
Hope it helps :)
I do know the bottom one is 2.8
Top is 1.6
I don’t know the middle one