Given Information:
Probability of success = p = 75 %
Total number of students = n = 1200
Required Information:
Standard deviation = σ = ?
Answer:
Standard deviation = 15
Step-by-step explanation:
In a binomial distribution, the probability of success does not change from trial to trial and the probability of events in not dependent on each other. Also the number of trials are fixed. So this problem can be modeled using binomial distribution.
The mean of the number of students who choose to enroll is given by
μ = n*p = 1200*0.75
μ = 900
The standard deviation of the number of students who choose to enroll is given by
σ = √np(1 - p)
σ = √1200*0.75(1 - 0.75)
σ = 15
Therefore, the standard deviation of the number of students who choose to enroll is 15.
Answer: 60%
Step-by-step explanation:
A percent has 100 in the denominator.
Multiply by a giant one of 4/4.
Change that to a percent.
60%
The corresponding sides are
LN to XZ
LM to XY
NM to ZY
We have NM=3 and ZY=9
The scale factor is 9÷3=3
XZ = 2×3 = 6 units
LM = 12÷3 = 4 units
The correct answer is <span>LM is 4 units and XZ is 6 units</span>
SA = 2( width Height + length Width + Length Height)
w= 12cm, h= 10cm and l=15cm
SA = 2( 12cm * 10cm + 15cm * 12cm + 15cm * 10cm)=450 cm^2
hope helps.