# Question

Two different lathes turn shafts to be used in electric motors. Measurements made of their diameters (in cm) are

Construct two stem-and- leaf diagrams to see if you should suspect that the two lathes are turning out shafts of different diameters.

Construct two stem-and- leaf diagrams to see if you should suspect that the two lathes are turning out shafts of different diameters.

## Answer to relevant Questions

The following are the drying times (minutes) of 100 sheets coated with polyurethane under various ambient conditions: Construct a frequency distribution of these data, using eight classes. Find the distribution function of the random variable that has the probability distribution Unequal class intervals. The small number of observations greater than 7 in Exercise 3.119 may cause some difficulty in constructing a frequency distribution. To keep class intervals equal, one is faced with the dilemma of ...The probability density of the continuous random variable X is given by (a) Draw its graph and verify that the total area under the curve (above the x- axis) is equal to 1. (b) Find P(3 < X < 5). With reference to Exercise 3.26, find the distribution function of X and use it to reevaluate the two probabilities asked for in that exercise. In exercisePost your question

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