Answer:
Step-by-step explanation:
4
Answer:
54 and 30
Step-by-step explanation:
84÷2=42-12=30
42+12=54
Answer:
150 students
Step-by-step explanation:
According to statement we have the following information
number of juniors=n=300
mean score=24
standard deviation score=4
The number of students that score above 24 is determined by
Number of students score above 24=number of juniors* P(student score above 24)
P(student score above 24)=P(x>24)=P(x-mean/sd>24-24/4)=P(z>0)=0.5.
Students score above 24=np=300*0.5=150
Hence there are 150 students scored above 24.
Answer:
25
Step-by-step explanation:
You add 2+3 and get 5. Then you square it to get 25.