1. pH measurements of a chemical solutions have mean 7.5 with standard deviation 0.06. Assuming all pH measurements of this solution have a nearly symmetric/bell-curve distribution. Find the percent (%) of pH measurements reading below 7.5 OR above 7.62.
2. Salaries for senior Civil engineers per year have known mean of 70 K dollars and standard deviation 3 K dollars. Provided that the salaries per year for senior Civil engineers have a nearly symmetric/bell-curve distribution, what percent (%) of Civil engineers have salary between 64 K and 67 K dollars?
3. Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 4.2 millimeters (mm) and a standard deviation of 0.6 mm. What percent (%) of ancient prehistoric Native American pot shards discovered in this area has thickness measurement thicker than 5.4.
4. Final exam scores in a Math class with large number of students have mean 150 and standard deviation 7.5. Provided the scores of this Final exam have a nearly symmetric/bell-curve distribution, what percent of students score below 127.5 OR above 157.5
1. pH measurements of a chemical solutions have mean 7.5 with standard deviation 0.06. Assuming all...
1. pH measurements of a chemical solutions have mean 7.5 with standard deviation 0.06. Assuming all pH measurements of this solution have a nearly symmetric/bell-curve distribution. Find the percent (%) of pH measurements reading below 7.5 OR above 7.62. 2. Salaries for senior Civil engineers per year have known mean of 70 K dollars and standard deviation 3 K dollars. Provided that the salaries per year for senior Civil engineers have a nearly symmetric/bell-curve distribution, what percent (%) of Civil...
1. Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 4.2 millimeters (mm) and a standard deviation of 0.6 mm. What percent (%) of ancient prehistoric Native American pot shards discovered in this area has thickness measurement thicker than 5.4. 2. Final exam scores in a Math class with large number of students have mean 150 and standard deviation 7.5. Provided the scores of this Final exam...
pH measurements of a chemical solutions have mean 6.5 with standard deviation 0.02. Assuming all pH measurements of this solution have a nearly symmetric/bell-curve distribution. Find the percent (%) of pH measurements reading below 6.46 OR above 6.48.
Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four de = 100; = 20 P(x290) Need Help? Read It Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 4.6 millimeters (mm) and a standard deviation of 1.4 mm. For a randomly found shard, find the following probabilities. (Round your answers to four decimal...
Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 5.5 millimeters (mm) and a standard deviation of 1.3 mm. For a randomly found shard, find the following probabilities. (Round your answers to four decimal places.)
please help me do this pH measurements of a chemical solutions have mean 7.4 with standard deviation 0.01. Assuming all pH measurements of this solution have a nearly symmetric/bel curve distribution. Find the percent (%) of pH measurements reading below 739 OR above 7.4.
thickness measurements of ancient prehistoric native american pot shards discovered in a hopi village were approximately normally distributed with a mean of 5.1 mm and a standard deviation of 0.9 mm. for a randomly found shard, what is the probability that the thickness is (a) less than 3.0 mm (b) more than 7.0 mm (c) between 3.0 and 7.0 mm
Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 4.8 millimeters (mm) and a standard deviation of 1.1 mm. For a randomly found shard, find the following probabilities. (Round your answers to four decimal places.) (b) the thickness is more than 7.0 mm (c) the thickness is between 3.0 mm and 7.0 mm
Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 5.5 millimeters (mm) and a standard deviation of 1.6 mm. For a randomly found shard, find the following probabilities. (Round your answers to four decimal places.) (a) the thickness is less than 3.0 mm (b) the thickness is more than 7.0 mm (c) the thickness is between 3.0 mm and 7.0 mm
Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 4.5 millimeters (mm) and a standard deviation of 1.5 mm. For a randomly found shard, find the following probabilities. (Round your answers to four decimal places.) (a) the thickness is less than 3.0 mm (b) the thickness is more than 7.0 mm (c) the thickness is between 3.0 mm and 7.0 mm