The COVID 19 positivity rate in Bulacan is 1.5%. Find the probability that 5 new confirmed COVID 19 case will be recorded.
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The COVID 19 positivity rate in Bulacan is 1.5%. Find the probability that 5 new confirmed COVID 19 case will be recorded.
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- The probability that an atom of Fermium-253 will undergo radioactive decay within a 3-day period is 50%. Given a sample of 10 atoms of Fermium-253, what is the probability that exactly 5 of those atoms will decay in a 3-day period? Edit View Insert Format Tools TableThe lifespan of EEL light bulbs is a random variable obeying a normal law. Lifetimeaverage of these bulbs is 3,000 hours and the standard deviationis 200 hours. Find the probability that a light bulblasts over 3,500 hours.The average daily jail population in the New Bilibid prison in Muntinlupa City is 36,295. If the distribution is normal and the standard deviation is 3, 760, find the probability that on a randomly selected day, the jail population is greater than 40, 145.
- A standard I.Q. test produce normally distributed results with a mean of 100 and a standard deviation of 15 for the city of New York. What is the probability that the I.Q below 67?If the daily mean number of COVID 19 deaths in Metro Manila is 2 . What is the probability of recording exactly 3 deaths on the next day?1) The bicycle manufacturer imports chains from the company CHX. The average life of the chains is 1500 km and have a standard deviation of 433 km. CHX randomly selects 100 chains. What is the probability that the mean life of this 100 chains is less than 1431 km? 2) The company CRAN produces crankshafts for automobile engines. The average life of the crankshafts is 22980 km and the standard deviation is 365 km. The company CRAN has developed a new bearing coating and claims that the average life of the crankshaft has increased. Therefore, he randomly selects 36 crankshafts and carries out experiments. The average life of the tested crankshafts is 23108 km. Is there an evidence of α=0,05 that the life of the crankshaft has increased? 3) The company Wings produces shafts by using 7075 aluminum. The company claims that 96% of the produced shafts have no defects (non-defective). We randomly select 150 shafts. What is the probability that the randomly selected 150 shafts are 97-99 %…
- Suppose that the mean number of radioactive particles crossing over a counter in 1 millisecond is 4. What is the likelihood that at least 4 particles enter the counter in a given millisecond?Suppose that 70% of all students in a large university pass all their classes. Find the probability that more than 60% of 34 r/s students from this university pass all their classes.Dandelions are studied for their effects on crop production and lawn growth. In one region, the mean number of dandelions per square meter was found to be 5.3. Find the probahility of no dandelions in an area of 1m². P(x=0)= Find the probability of at least one dandelion in an area of 1m². at least one
- Consider a normally distributed random variable X with a mean of 85 and standard deviation of 10. Find ? The probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to have contracted this disease, what is the probability that 3 to 8 will survive?The lifetimes of batteries in a certain application are normally distributed with mean 50 hours and standard deviation 5 hours. Find the probability that randomly chosen battery lasts between 45 and 55 hours.According to Johns Hopkins data, the mortality rate of Covid-19 for the USA and the UK respectively 1.7% and 2.7%.It is expected that next week there will be 1,200,000 (1.2 million) and 238,000 Covid-19 cases for the US and the UK, respectively.Deaths in the USA and the UK assuming independent, Covid-19 for US and UK next week Find the probability that the total number of deaths is at least 27,000.Hint: Use the normal approximation to the binomial distribution.
