# Question: A high security government installation has installed four security systems

A high- security government installation has installed four security systems to detect attempted break-ins. The four security systems operate independently of each other, and each has a .85 probability of detecting an attempted break- in. Assume an attempted break- in occurs. Use the binomial distribution to find the probability that at least one of the four security systems will detect it.

**View Solution:**## Answer to relevant Questions

A new stain removal product claims to completely remove the stains on 90 percent of all stained garments. Assume that the product will be tested on 20 randomly selected stained garments, and let x denote the number of these ...Recall from Example 5.5 that Sound City also sells the ClearTone- 400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 6 weeks with no radios sold, 30 weeks with one radio sold, 30 ...Refer to Exercise 6.14 and find the probability that the observed May rainfall will fall within two standard deviations of the mean May rainfall. Stanfordâ€“Binet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 16. a. Sketch the distribution of Stanfordâ€“Binet IQ test scores. b. Write the equation that gives the z score ...In the book Advanced Managerial Accounting, Robert P. Magee discusses monitoring cost variances. A cost variance is the difference between a budgeted cost and an actual cost. Magee considers weekly monitoring of the cost ...Post your question