the average age of private vehicles in Marilao Bulacan is 6 years. Assume that the standard deviation is 2 years. A random sample of 10 private vehicles is chosen, find the probability that the mean of private vehicles ages is a. ...
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The average salary of a sales lady in malls in Metro Manila is P 430/ a day. Assume a normal distribution with a standard deviation of P 80.What is the probability that a random selected sale lady is receiving a ...
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
A population N= 5Â consist of the following values 10, 11, 12, 13, and 14. Find the mean variance and standard deviation using a random variable of size n=2
How to solve rational inequalities
Eyeglassomatic manufactures eyeglasses for different retailers. In March 2010, they tested to see how many defective lenses they made, and there were 16.9% defective lenses due to scratches. Suppose Eyeglassomatic examined twenty eyeglasses. Find the mean. Find the variance. Find the standard deviation
A group of students with normally distributed salaries earn an average of $6,800 with a standard deviation of $2,500. What proportion of students earn between $6,500 and $7,300?
A box contains red and green balls. The number of green balls is 1/3 the number of red balls. If a ball is taken randomly from the box, what is the probability that the ball is red?
The grades of a group of 1000 students in an exam are normally distributed with a mean of 70 and a standard deviation of 10. A student from this group is selected randomly. a) Find the probability that his/her grade ...
What is the term used in talking about the chance that an event occurs?