Probability of randomly chosen student-normal approximation

Assignment Help Basic Statistics

Reference no: EM1322603

Finding probability value for the given data using normal approximation.

Scores on a test are normally distributed with a mean of 68.2 and a standard deviation of 10.4. Estimated the probability that among 75 randomly selected students, at least 20 of them score greater than 78.

a.0.0166

b.0.0239

c.0.0113

d.0.1736

Reference no: EM1322603

Questions Cloud

Hypothesis test for two factors anova : Hypothesis test for two factors ANOVA. Describe what thses represent and, based on figure, whether there is a problem with the data r otherwise.

Sampling distribution of the sample means : Finding the probability of sample and describe the sampling distribution of the sample means.

Probability-uniform density curve : Finding probability for the given values of the uniform density curve

Legal counsel to help mitigate international business risks : Discuss how an organization can use legal counsel to help mitigate its international business risks.

Probability of randomly chosen student-normal approximation : Estimated the probability that among 75 randomly selected students, at least 20 of them score greater than 78.

Project management practices : If you don't have personal experience with a project, research how project management practices have made projects successful.

Variation in the independent variable : Multiple choices based on regression analysis - the percentage of variation in the dependent variable explained by the variation in the independent variable

Nature of executive compensation : Given the nature of executive compensation, please identify a credible source on the Internet and discuss an example of a "golden parachute" that has been provided to an executive over the past 15 years

Normal distribution to approximate desired probability : By using the normal distribution to approximate the desired probability.

User Account

All Pages