# Probabilities with Binomial Distributions

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7) On a very hot summer day, 5% of the production employees at Midland States Steelare absent from work. The production employees are to be selected at random for a special in-depth study on absenteeism.What is the probability of selecting 10 production employee at random on a hot summer day and finding that none of them are absent.

A) 0.002

B) 0.344

C) 0.599

D) 0.100

8) Sponsors of a local charity decide to attract wealthy patrons to its $500 a plate dinner by allowing each patron to buy a set of 20 tickets for the gambling table. The chances of winning in each of these plays is 50-50. If you bought 20 tickets what is the chance of winning 15 or more prizes.

A) 0.250

B ) 0.021

C) 0.006

D) 0.750

9) If the probability of a defective bolt is 0.1 find a) the mean and b) the standard deviation for the distribution of defective bolts in a total of 400.

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Answer to 3 questions on Probability using Binomial Distribution.

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Note: ^ stands for raised to the power of

7) On a very hot summer day, 5% of the production employees at Midland States Steelare absent from work. The production employees are to be selected at random for a special in-depth study on absenteeism.What is the probability of selecting 10 production employee at random on a hot summer day and finding that none of them are absent.

A) 0.002

B) 0.344

C) 0.599

D) 0.100

We use Binomial Distribution

p= 5.00% probability of ...

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