Q. The standard deviation is 110 and the mean is 770. What is the coefficient of variation?

View solution

Q. If the coefficient of variation of a data set A is 40 and for data set B it is 60, which data set is more consistent?

View solution

Q. If the variance of the data 2, 4, 5, 6, 8, 17 is 23.33. Then, what is the variance of 4, 8, 10, 12, 16, 34?

View solution

Q. A set of observations x₁, x₂, x₃, x₄, has a standard deviation = 6. Each of these observations is added with a constant k. What is the new standard deviation?

View solution

Q. The collection of all the results of an operation can be called as __________ in statistics.

View solution

Q. The subset of a population is known as ________

View solution

Q. The process of sample selection in statistics is known as _______

View solution

Q. Sampling can be used when it is impossible to measure the entire population.

View solution

Q. The Gaussian curve is also known as ______

View solution

Q. If the standard deviation is zero, what comment can we make on the type of normal curve formed?

View solution

Q. There are two normal curves with the same mean value. The standard deviation of curve 1 is more than curve 2, what can we comment on the two normal curves?

View solution

Q. ‘Parameter’ is a true population estimated by a ‘statistic’ and is often unknown.

View solution

Q. Numerical data measured directly from a sample is known as _______

View solution

Q. Which of the following is not a type of sampling technique?

View solution

Q. ‘Random causes of variations’ in any manufacturing process are inevitable.

View solution

Q. Which of the following is not a factor that affects the occurrence of ‘random causes of variation’ in any manufacturing process?

View solution

Q. ‘Assignment causes of variation’ of any manufacturing process are also known as _______

View solution

Q. ‘Assignment cause of variation’ in any manufacturing process can be easily traced and detected.

View solution

Q. A stable process in any manufacturing process exhibits only ______

View solution

Q. The x̅-charts and R-charts monitor ____ and ____ of any manufacturing process.

View solution