The answer is C. All students enrolled at Springfield high school.
Answer:
1 4/35
Step-by-step explanation:
All I did was do 5/7 + 2/5.
Answer:
subtraction
Step-by-step explanation:
just did it and got it right
Answer:
360
Step-by-step explanation:
<span>The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50. what is the probability that a student uses more than 580 minutes?
Given
μ=500
σ=50
X=580
P(x<X)=Z((580-500)/50)=Z(1.6)=0.9452
=>
P(x>X)=1-P(x<X)=1-0.9452=0.0548=5.48%
</span>