(number of yellow marbles) / (overall number of marbles)
=
2/20
Answer:
The Z score of the person is -3.09.
Step-by-step explanation:
The standard normal deviate (Z) for a normal distribution is given by

where,
X = the value of observation
is mean of the observations and
σ = standard deviation of the score
Applying values we get

It would be 80% since it decreases 20% each year so 20*4 is 80 so it’s 80%
Step-by-step explanation:
6-2x=6x-10x+8
6-2x=-4x+8
6-8=-4x+2x
-2=-2x
X=-2/-2
X=1
PLS MARK ME AS THE BRAINLIEST
Answer: A, D, & E
Step-by-step explanation:
they are all correct when 5 is plugged in.