# Probabilities with Binomial Distributions

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.

Â© BrainMass Inc. brainmass.com September 24, 2022, 7:23 pm ad1c9bdddfhttps://brainmass.com/statistics/probability/probabilities-binomial-distributions-5745

#### Solution Preview

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 ...

#### Solution Summary

Answer to 3 questions on Probability using Binomial Distribution.