8.1.22 Question Help Suppose a geyser has a mean time between eruptions of 97 minutes. If the interval of time between the eruptions is normally distributed with standard deviation 20 minutes, answer the following questions. (a) What is the probability that a randomly selected time interval between eruptions is longer than 105 minutes? The probability that a randomly selected time interval is longer than 105 minutes is approximately 0.3446. (Round to four decimal places as needed.) (b) What is the probability that a random sample of 16 time intervals between eruptions has a mean longer than 105 minutes? (Round to four decimal places as needed.) The probability that the mean of a random sample of 16 time intervals is more than 105 minutes is approximately
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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