Answer:
The value of mean is
Step-by-step explanation:
The normal distribution of the soft-drink dispensing machine can be stated statistically like
~
The standard form representation is
Now we need to obtain in such a way that
In standard form
Since
This means
Now looking at the z-table for probability of 0.99 we obtain 1.88
i.e
Making
Answer:
x = 12
Step-by-step explanation:
5x - 30 = 2x + 6
3x = 36
x = 12
Answer:
x=3
Step-by-step explanation:
I guessed and checked which x value would make ABC proportional to DBE. If x=3, than DB=8 which is double BE. If x=3, than AB=14 which is double BC. Since it is proportional, It should be correct. I don't remember the actual way you solve this with a formula but this makes sense to me.
Answer:
All are correct except for D
Step-by-step explanation:
Its true that Josh rolls an even number on the cube because 2 is an even number.
Elise spins the spinner and does land on X because X was one of the results.
Hal flips the coin and it did land on H.
but Josh did not roll just one number less than 4 he rolled 4 numbers less than 4