Answer:1:1000
Step-by-step explanation:
It’s 1:1000 because compared to the other one the height of the model would be 9.3 centimeters if 1:1000 was the scale of the model
1 fourth which as a fraction would look like:
1
-
4
Answer:
z = -0.4.
Step-by-step explanation:
Here's the formula for finding the z-score (a.k.a. standardized normal variable) of one measurement
of a normal random variable
:
,
where
is the z-score of this measurement,
is the value of this measurement,
is the mean of the random normal variable, and
is the standard deviation (the square root of variance) of the random normal variable.
Let the length of a trout in this lake be
inches.
.
, and
.
For this measurement,
. Apply the formula to get the z-score:
.
Answer:
y=2
Step-by-step explanation: