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Recent questions in Sampling distributions

### An underground military installation is fortified to the extent that it can withstand up to three direct hits from air-to-surface missiles and still function. Suppose an enemy aircraft is armed with missiles, each having a 30 % chance of scoring a direct hit. i. What is the probability that the installation will be destroyed with the seventh missile firedis obtained by fewer than nine air strikes? ii. Find the expected air-to-surface missiles strike.

amara labonog 2022-04-09

### A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 121.1-cm and a standard deviation of 2.2-cm. For shipment, 26 steel rods are bundled together.Find P91, which is the average length separating the smallest 91% bundles from the largest 9% bundles.P91 = -cmEnter your answer as a number accurate to 2 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

amara labonog 2022-04-09

2022-01-31