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A company has two assembly lines, each of which stalls on average of 2.4 times per week according to a Poisson distribution. Assume that the performances of these assembly lines are independent of one another.
What is the probability that at least one line stalls at least once in any given week?
The consumer price index (CPI) is a measure of the average change in prices over time in a fixed market basket of goods and services typically purchased by consumers. One of the items in this market basket that affects the CPI is the price of oil ..
Below is the data set for the amount of trash by ten households (in pounds per day). Assume the population is normally distributed
A poll of 1125 adults in a certain country found that 55% identified themselves as the followers of some religion. The margin of error was 5 percentage points with 99% confidence.
in an asian country with apopulation of 6 million people 60000 deaths occurred during the year ending december 31 1995.
rollover rates for suvs is a major transportation safety issue. in order to capture differences among true rollover
sixty percent of all road accidents are due to distracted driving. in a random sample of 100 accidents what is the
What is the sample proportion, proportion of contacts that resulted in a sale being made?- For simple random samples of this size, what is the probability that p ≤ 0.10?
Let X equal the arrival time of the third elevator in Quiz 7.2. Find the exact value of P[W ≥ 60]. Compare your answer to the upper bounds derived in Quiz 7.2.
However one of the children fails to solve the peoblems, so the researcher has an undetermined score. what is the best measure of central tendency for these data?
1. what information does calculating standard deviation provide? how is the z-score related to standard deviation?2.
A certain type of tomato seed germinate 90% of the times. if a farmer plants 25 seed, What is the probability that: -exactly 20 germinates more than 19 germinates.
Compute the skewness for your data set using Pearson's
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