The average age of vehicles registered in the United States is 96 months with a standard deviation of 15 months. A sample of sample of 64 vehicles is taken. Answer Question 26 and Question 29 Q26 (1 marks) The average age of a vehicle can be modelled by a normal distribution. (T/F). Q27 (2 marks): Find the probability that the mean age is between 98 and 100 months. Q28 (2 marks): Find the probability that the mean age is greater than 100 months. 0.0164Q29 (3 marks): If the sample size is double, find the probability that the mean age in the sample is either less than 94 months or greater than 98 months.

The average age of a vehicles registered in Kenya is 8 years or 96 months, assume the standard deviation is 16 months. If a random sample of 36 vehicle is selected, find the probability that the selected age is between 90 and 100 months

A normal population has mean μ =33 and standard deviation σ =7.(a) What proportion of the population is between 18 and 29?(b) What is the probability that a randomly chosen value will be between 26 and 36?

The ages of students at a university are normally distributed with a mean of 21. What percentage of the student age is at least 21 years old?Question 10Select one:a.21%b.1.96%c.50%d.It could be any value, depending on the magnitude of the standard deviation

In a certain country, retirement age is known to follow a left-skewed distribution with a mean value of 63.78 years and a standard deviation of 3.89 years. Suppose we take a random sample of 17 members of this country, and calculate their average age at retirement. What is the probability that this sample has an average value of at most 63.88 years?Give your answer to four decimal places. If the question cannot be answered with the information given, enter -1 as your answer.

A racing car consumes a mean of 114114 gallons of gas per race with a standard deviation of 77 gallons.If 4646 racing cars are randomly selected, what is the probability that the sample mean would differ from the population mean by greater than 11 gallon? Round your answer to four decimal places.