35 points.Helpppp with explanation.
1 answer:
You might be interested in
Answer:
or
Step-by-step explanation:
we have
Divide the absolute value inequality into two inequalities
<em>First inequality</em> (positive value)
<em>Second inequality</em> (negative value)
Multiply by -1 both sides
Remember that when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol
so
therefore
The compound inequality that can be used is
or
Answer:
The standard deviation of this probability distribution is 1.2.
Step-by-step explanation:
We have that:
P(X = 0) = 0.25
P(X = 1) = 0.3
P(X = 2) = 0.1
P(X = 3) = 0.35
Mean:
Each value multiplied by its probability. So
Variance:
Sum of the squares of the values subtracted from the mean, and multiplied by its probability.
Standard deviation:
Square root of the variance. So
The standard deviation of this probability distribution is 1.2.