The answer is 7 because x+3 is 10. Hope this helped
Answer:
The probability of a car being selected will be given by :the number of car required/ the total number of cars
Step-by-step explanation:
Probability is the likelihood of an event occurring.
This is given by : number of required outcome/number of possible outcome
Answer:
The standard deviation will be: 2.1
Step-by-step explanation:
We know that standard deviation is basically the square root of variance.
Using the formula to calculate the standard deviation

As
so the standard deviation can be calculated as:
standard deviation 


Therefore, the standard deviation will be: 2.1