Asalesperson earns a salary of $40,000 per year plus 7% commission on sales of $120,000. what is his total income?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

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