Probability of mean and review for a chemistry test

Reference no: EM1386405

As part of his review for a chemistry test, a student randomly selects (without replacement) 40 out of 102 elements listed on the standard tables, and tries to guess their atomic numbers. Given that the mean of all 102 atomic numbers is 51.794, and the population standard deviation is 29.804, what is the probability that the mean of the 40 atomic numbers selected by the student will be at least 57.3?

Reference no: EM1386405

Questions Cloud

Explanation to allele frequency and selective pressure : The big majority of the frogs in this population are green. A few individual frogs carry a mutation that prevents the production of the green pigment.

Forecast demand using the simple moving average : A company wants to forecast demand using the simple moving average. If the company uses four prior yearly sales values (i.e., year 2007 = 100, year 2008 = 120, year 2009 = 140, and year 2010 = 210)

What are the utilization and efficiency of the conference : The last event, although forecasted to have 1,000 participants, resulted in the attendance of only 950 participants. What are the utilization and efficiency of the conference facility?

Crossover point between existing process and the proposed : What is the crossover point between the existing process and the proposed process? If the owner expects to sell 9,000 pizzas, should he get the new oven?

Probability of mean and review for a chemistry test : Given that the mean of all 102 atomic numbers is 51.794, and the population standard deviation is 29.804, what is the probability that the mean of the 40 atomic numbers selected by the student will be at least 57.3?

Analyzing microbial life in the rocky mountains : Assume you are analyzing microbial life in the Rocky Mountains. You scoop up a water sample from a melted snow puddle because you are curious about the possible microbes that might live there.

How energy lost heat at second through fourth trophic levels : How did amount of energy gained in the banana compare to amount of energy lost as heat at second through fourth trophic levels?

Deconstructive arguments : Deconstructive arguments work by demonstrating that a position's premises yield contradictory conclusions when entailments are carefully considered.

Success of the species in the modified environment : Create a bio paper propose a hypothesis that explains the lack of success of the species in the modified environment.

User Account

All Pages