What is the relative frequency of the first class? ( Write the answer as a decimal number; round to 2 decimals)

What is the frequency of the first class?

Provide an appropriate response.A small computing center has found that the number of jobs submitted per day to its computers has a distribution that is approximately bell shaped, with a mean of 63 jobs and a standard deviation of 7. Where do we expect most (approximately 95%) of the distribution to fall?

In a binomial distribution, if n=10, p=.3 and q=.7 and where n*p*q= 2.1 would you use a normal approximation?

Use the following information to answer the question. The mean age of lead actresses from the top ten grossing movies of 2010 was 29.6 years with a standard deviation of 6.35 years. Assume the distribution of the actresses’ ages is approximately unimodal and symmetric.Between what two values would you expect to find about 68% of the lead actresses ages?

A random sample of sale prices of homes yielded the following summary information: MIN= $48,000, Q1= $83,000 Median= $129,000, Q3= $160,000, MAX= $270,000. c) Calculate the Upper Fence

Use the empirical rule to solve the problem.At one college, GPA’s have a distribution that is unimodal and symmetric with a mean of 2.7 and a standard deviation of 0.5. Is a GPA of 3.8 more than one standard deviation above the mean?

What is  the symbol for the sample standard deviation?

Use the following Excel Regression Analysis to answer the following question. What is the slope of the regression line? (Round to 2 decimals)

Solve the problem.According to the following two-way table, what percent of people in the sample prefer dogs?