Answer:
7/12
Step-by-step explanation:
2 1/4 - 1 2/3 =
2 3/12 - 1 8/12 = 
7/12
 
        
             
        
        
        
Hey read the image I have attached. Ignore what I am typing here I need to type 20 characters. 
 
        
             
        
        
        
The team that should be awarded for consistent performance should be Team M. This is because the standard deviation of the team's players' scores is the lowest. Standard deviation is a measure of how much the individual data points vary from the average value, and for a consistent performance, this variation will be low.
The team with the highest average is Team N. The average is the same as the mean, and this is the highest for Team N, with a value of 13.
        
             
        
        
        
Given that the total number of students that sent messages = 150 students
a) To obtain the equation to represent the number of students who send text messages, we will sum up the variables in the Venn diagram and equate it to 150.

Hence, the equation is

b) Solving for x

Therefore, x = 15.
c) The total number of student that uses cell phone = 75 + x = 75 + 15= 90students
The total number of students that sent messages = 150students
The formula for probability is,

Hence,

Therefore, the probability that a randomly chosen student uses their cell phone to send text messages is 3/5.